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"introduction": { "version": 1, "background": { "id": "background", "title": "项目背景 · 液压泵应急切换", "body": "重型支援桥在将移动架推出至中间位置时，突遇山体滑坡，巨石滚落，飞入底盘车两副车架内，产生巨大撞击声，操作手随即停车检查，发现前泵被飞入巨石击中，导致泵体变形。而后桥梁分队分队长指挥操作手试车检查，驾驶员在接通取力器后，操作手按照规定程序试车，此时托架和架设架所有执行机构不动作，随即向分队长报告。而后分队长指挥操作手对装备进行动作检查，操作手在托架和架设架均不动作的状态下，手动将托架马达换向联手柄搬至“向前”位置，同时，分队长观察前泵出口处（托架多路换向阀M口）压力表，此时压力表显示0MPa。由此分队长判断前泵损坏。", "format": "image-text", "imageUrl": "/models/bridge-training/bridge-pump-switch-v2.jpg", "videoUrl": "", "imageAssetCode": "", "videoAssetCode": "", "source": "TASK-VIRTUAL-005 图片原文", "enabled": true }, "lectures": [ { "id": "TASK-VIRTUAL-005-L1", "title": "液压泵作用与应急切换引入", "body": "重型支援桥作为应急保障力量的重要组成部分，在抢险救灾中起到了关键作用。在架设与撤收中，液压系统作为装备的动力系统，特别是液压系统的心脏——液压泵，这一关键部件的可靠性直接关系到能否完成桥梁架设撤收作业，面对复杂的战场环境，一旦液压系统出现故障，就会导致桥梁架设撤收作业被迫中断，甚至引发危险状态。\n\n那在战时，如果液压泵损坏，该怎样快速完成架桥任务呢？\n\n通过对液压系统分析可知，重型支援桥液压系统采取了“双泵独立供油”的设计理念，因此，如果其中一个液压泵出现损伤，可以采取应急切换的方法，快速完成装备抢修。", "format": "image-text", "imageUrl": "/models/bridge-training/bridge-pump-switch-v2.jpg", 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"id": "TASK-VIRTUAL-005-L4", "title": "打开球阀后的回油问题", "body": "此时，我们应该注意到在两个出油滤油器的出口处设置一球阀，在正常情况下，该球阀处于关闭状态。\n\n那如果将该球阀打开，会出现什么样的情况呢？\n\n此处以托架马达向前为例说明，当操作手操作托架马达向前时，来自负载侧的压力会将托架多路换向阀连接块内的三通流量调节阀关闭，此时来自前泵的液压油无法通过托架多路换向阀连接块内的三通流量调节阀返回液压油箱，应通过托架多路换向阀内部通道进入托架马达换向联，而后进入液压马达，推动液压马达旋转。\n\n但此时液压马达侧负载压力较大，液压油便不会进入液压马达，而是经打开的球阀，进入支腿多路换向阀连接块内，通过支腿多路换向阀内的三通流量调节阀返回液压油箱。\n\n操作托架液压系统和架设架液压系统的任一执行机构时，均会出现上述现象。同理可分析，操作支腿液压系统和吊机液压系统的任一执行机构时，也会出现上述现象。\n\n那在前泵损坏的情况下，可否利用液压系统这一设计理念，完成重型支援桥的架设和撤收作业呢？\n\n通过上述分析，操作重型支援桥任一执行机构时，负载侧压力总会关闭相应的多路换向阀连接块内的三通流量调节阀，使得来自液压泵的液压油从另一多路换向阀连接块内的三通流量调节阀返回液压油箱，因此，如果提前关闭两个多路换向阀连接块内的三通流量调节阀，则无论来自哪个液压泵的液压油均不会返回液压油箱，那通过哪个元件关闭三通流量调节阀呢？", "format": "image-text", "imageUrl": "/models/bridge-training/bridge-pump-switch-v2.jpg", "videoUrl": "", "imageAssetCode": "", "videoAssetCode": "", "source": "TASK-VIRTUAL-005 图片解说词" }, { "id": "TASK-VIRTUAL-005-L5", "title": "自救阀与切换原理", "body": "此时我们应注意到，托架多路换向阀和支腿多路换向阀的M口各串联一自救阀，如果将该自救阀打开，则在接通取力器时，来自液压泵的液压油便将三通流量调节阀关闭。\n\n因此，在实施切换时，还需打开自救阀。", 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"requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第7步，拆下大腔平衡阀。用八号内六角扳手拆下安装螺栓，取下平衡阀。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_E83DDAB19F774A418C82EBA7E8EDCF8A", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "82", "videoName": "重型支援桥平衡阀拆拼互换 · 7 拆下大腔平衡阀", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-8", "stepCode": "BRIDGE-STEP-8", "actionCode": "COMPLETE_BRIDGE-STEP-8", "number": 8, "title": "封堵大腔油口", "targetId": "bridge-large-plug-1", "targetName": "封堵第 1 个油堵", "mode": "inspect", "interaction": "mechanism-operation", "instruction": "用两个油堵封住两个油口，擦净阀座结合面。", "guidance": "用两个油堵封住两个油口，擦净阀座结合面。", "warning": "", "success": "封堵大腔油口：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-large-plug-1", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-large-plug-1", "kind": "identify", "directionHint": "封堵第 1 个油堵", "effects": [ { "targetId": "bridge-large-plug-1", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-plug-2", "kind": "identify", "directionHint": "封堵第 2 个油堵", "effects": [ { "targetId": "bridge-large-plug-2", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-seat", "kind": "identify", "directionHint": "擦净阀座结合面", "effects": [ { "targetId": "bridge-large-seat", "color": 12965080 } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第8步，封堵大腔油口。用两个油堵封住两个油口，擦净阀座结合面。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_4FE31068F3EB410BAC72E19F1D1BAF49", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "83", "videoName": "重型支援桥平衡阀拆拼互换 · 8 封堵大腔油口", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-9", "stepCode": "BRIDGE-STEP-9", "actionCode": "COMPLETE_BRIDGE-STEP-9", "number": 9, "title": "准备安装大腔平衡阀", "targetId": "bridge-large-seat", "targetName": "擦净安装结合面", "mode": "inspect", "interaction": "mechanism-operation", "instruction": "擦净平衡阀及阀座结合面，取下两个油堵。", "guidance": "擦净平衡阀及阀座结合面，取下两个油堵。", "warning": "", "success": "准备安装大腔平衡阀：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-large-seat", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-large-seat", "kind": "identify", "directionHint": "擦净安装结合面", "effects": [ { "targetId": "bridge-large-seat", "color": 14477797 } ] }, { "targetId": "bridge-large-plug-1", "kind": "identify", "directionHint": "取下第 1 个油堵", "effects": [ { "targetId": "bridge-large-plug-1", "offset": [ 0, 0.55, 0.5 ] } ] }, { "targetId": "bridge-large-plug-2", "kind": "identify", "directionHint": "取下第 2 个油堵", "effects": [ { "targetId": "bridge-large-plug-2", "offset": [ 0, 0.55, 0.5 ] } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第9步，准备安装大腔平衡阀。擦净平衡阀及阀座结合面，取下两个油堵。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_D0A3CAC5278C4A57AC9BEF13DA2690BC", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "84", "videoName": "重型支援桥平衡阀拆拼互换 · 9 准备安装大腔平衡阀", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-10", "stepCode": "BRIDGE-STEP-10", "actionCode": "COMPLETE_BRIDGE-STEP-10", "number": 10, "title": "安装大腔平衡阀", "targetId": "bridge-small-valve", "targetName": "将互换平衡阀装到阀座", "mode": "inspect", "interaction": "mechanism-operation", "instruction": "将平衡阀放置于阀座上，用8内六角扳手安装四个安装螺栓。", "guidance": "将平衡阀放置于阀座上，用8内六角扳手安装四个安装螺栓。", "warning": "", "success": "安装大腔平衡阀：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-small-valve", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-small-valve", "kind": "identify", "directionHint": "将互换平衡阀装到阀座", "effects": [ { "targetId": "bridge-small-valve", "offset": [ 3.2, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-1", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 1 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-1", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-2", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 2 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-2", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-3", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 3 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-3", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-4", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 4 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-4", "offset": [ 0, 0, 0 ] } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第10步，安装大腔平衡阀。将平衡阀放置于阀座上，用八号内六角扳手安装四个安装螺栓。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_0F40DAF3E28F4FA088EA943D9470CAA7", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "85", "videoName": "重型支援桥平衡阀拆拼互换 · 10 安装大腔平衡阀", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-11", "stepCode": "BRIDGE-STEP-11", "actionCode": "COMPLETE_BRIDGE-STEP-11", "number": 11, "title": "核对大腔控制油口管路连接", "targetId": "bridge-large-bag", "targetName": "取下封口袋", "mode": "measure", "interaction": "mechanism-operation", "instruction": "原稿先写“拆下包扎袋，连接并拧紧管路”，随后又出现“用19开口扳手拆开管路并包扎”的相反描述。", "guidance": "原稿先写“拆下包扎袋，连接并拧紧管路”，随后又出现“用19开口扳手拆开管路并包扎”的相反描述。", "warning": "请记录采用的处理方式及依据，随训练记录提交教员核对；系统不自动判定该项操作正确。", "success": "核对大腔控制油口管路连接：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-large-bag", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-large-bag", "kind": "identify", "directionHint": "取下封口袋", "effects": [ { "targetId": "bridge-large-bag", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-pipe", "kind": "identify", "directionHint": "按记录的处理依据连接管路", "effects": [ { "targetId": "bridge-large-pipe", "offset": [ 0, 0, 0 ] } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第11步，核对大腔控制油口管路连接。原稿先写“拆下包扎袋，连接并拧紧管路”，随后又出现“用十九号开口扳手拆开管路并包扎”的相反描述。请记录采用的处理方式及依据，随训练记录提交教员核对；系统不自动判定该项操作正确。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_F6427532AF5F40348CEB154F031F2AED", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "86", "videoName": "重型支援桥平衡阀拆拼互换 · 11 核对大腔控制油口管路连接", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-12", "stepCode": "BRIDGE-STEP-12", "actionCode": "COMPLETE_BRIDGE-STEP-12", "number": 12, "title": "紧固大腔阀体连接螺栓", "targetId": "bridge-large-bolt-1", "targetName": "紧固第 1 个螺栓", "mode": "inspect", "interaction": "mechanism-operation", "instruction": "用内六角扳手拧紧四个阀体连接螺栓。", "guidance": "用内六角扳手拧紧四个阀体连接螺栓。", "warning": "", "success": "紧固大腔阀体连接螺栓：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-large-bolt-1", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-large-bolt-1", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 1 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-1", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-2", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 2 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-2", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-3", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 3 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-3", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-large-bolt-4", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, "directionHint": "紧固第 4 个螺栓", "effects": [ { "targetId": "bridge-large-bolt-4", "offset": [ 0, 0, 0 ] } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第12步，紧固大腔阀体连接螺栓。用内六角扳手拧紧四个阀体连接螺栓。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_F601DB08C8D44934AD3A1B1582E804DB", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "87", "videoName": "重型支援桥平衡阀拆拼互换 · 12 紧固大腔阀体连接螺栓", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-13", "stepCode": "BRIDGE-STEP-13", "actionCode": "COMPLETE_BRIDGE-STEP-13", "number": 13, "title": "准备安装小腔平衡阀", "targetId": "bridge-small-seat", "targetName": "擦净安装结合面", "mode": "inspect", "interaction": "mechanism-operation", "instruction": "擦净平衡阀及阀座结合面，取下两个油堵。", "guidance": "擦净平衡阀及阀座结合面，取下两个油堵。", "warning": "", "success": "准备安装小腔平衡阀：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-small-seat", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-small-seat", "kind": "identify", "directionHint": "擦净安装结合面", "effects": [ { "targetId": "bridge-small-seat", "color": 14477797 } ] }, { "targetId": "bridge-small-plug-1", "kind": "identify", "directionHint": "取下第 1 个油堵", "effects": [ { "targetId": "bridge-small-plug-1", "offset": [ 0, 0.55, 0.5 ] } ] }, { "targetId": "bridge-small-plug-2", "kind": "identify", "directionHint": "取下第 2 个油堵", "effects": [ { "targetId": "bridge-small-plug-2", "offset": [ 0, 0.55, 0.5 ] } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第13步，准备安装小腔平衡阀。擦净平衡阀及阀座结合面，取下两个油堵。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_B1BBA42CE5F346228B6B39A51F190CB3", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "88", "videoName": "重型支援桥平衡阀拆拼互换 · 13 准备安装小腔平衡阀", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-14", "stepCode": "BRIDGE-STEP-14", "actionCode": "COMPLETE_BRIDGE-STEP-14", "number": 14, "title": "安装小腔平衡阀", "targetId": "bridge-large-valve", "targetName": "将互换平衡阀装到阀座", "mode": "inspect", "interaction": "mechanism-operation", "instruction": "将平衡阀放置于阀座上，用8内六角扳手安装四个安装螺栓。", "guidance": "将平衡阀放置于阀座上，用8内六角扳手安装四个安装螺栓。", "warning": "", "success": "安装小腔平衡阀：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-large-valve", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-large-valve", "kind": "identify", "directionHint": "将互换平衡阀装到阀座", "effects": [ { "targetId": "bridge-large-valve", "offset": [ -3.2, 0, 0 ] } ] }, { "targetId": "bridge-small-bolt-1", "kind": "rotate", "axis": [ 0, 0, 1 ], "deltaDegrees": 180, "toleranceDegrees": 8, 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"narrationText": "第14步，安装小腔平衡阀。将平衡阀放置于阀座上，用八号内六角扳手安装四个安装螺栓。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_2BCD762C693242FF8DA420BD9A5D4DF9", "digitalHuman": { "enabled": true, "mode": "video", "videoSource": "library", "videoId": "89", "videoName": "重型支援桥平衡阀拆拼互换 · 14 安装小腔平衡阀", "appId": "AP_238179E0A10F97927EA49FA3", "videoUrl": "", "generatedVideoUrl": "", "generationStatus": "generated" } } }, { "id": "BRIDGE-STEP-15", "stepCode": "BRIDGE-STEP-15", "actionCode": "COMPLETE_BRIDGE-STEP-15", "number": 15, "title": "核对小腔控制油口管路连接", "targetId": "bridge-small-bag", "targetName": "取下封口袋", "mode": "measure", "interaction": "mechanism-operation", "instruction": "原稿先写“拆下包扎袋，连接并拧紧管路”，随后又出现“用19开口扳手拆开管路并包扎”的相反描述。", "guidance": "原稿先写“拆下包扎袋，连接并拧紧管路”，随后又出现“用19开口扳手拆开管路并包扎”的相反描述。", "warning": "请记录采用的处理方式及依据，随训练记录提交教员核对；系统不自动判定该项操作正确。", "success": "核对小腔控制油口管路连接：三维操作已保存", "cameraPolicy": "focus", "action": { "kind": "mechanism-operation", "targetId": "bridge-small-bag", "requiresPlacement": false, "durationMs": 700, "mechanism": { "type": "sequence", "steps": [ { "targetId": "bridge-small-bag", "kind": "identify", "directionHint": "取下封口袋", "effects": [ { "targetId": "bridge-small-bag", "offset": [ 0, 0, 0 ] } ] }, { "targetId": "bridge-small-pipe", "kind": "identify", "directionHint": "按记录的处理依据连接管路", "effects": [ { "targetId": "bridge-small-pipe", "offset": [ 0, 0, 0 ] } ] } ] } }, "toolId": "", "measurement": "", "assessment": { "weight": 6.25, "requiredDimensions": [ "action", "sequence" ], "passPolicy": "all-required" }, "audio": { "narrationSource": "digital-generate", "narrationText": "第15步，核对小腔控制油口管路连接。原稿先写“拆下包扎袋，连接并拧紧管路”，随后又出现“用十九号开口扳手拆开管路并包扎”的相反描述。请记录采用的处理方式及依据，随训练记录提交教员核对；系统不自动判定该项操作正确。", "successCue": "ui", "errorCue": "collision-error", "narrationUrl": "", "narrationAssetCode": "", "narrationVideoAssetCode": "DH_5F8309BF74344C568C2C9EEFDD9E74BF", "digitalHuman": { "enabled": true, 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