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  1227.             "bridge-hose-b",

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  1229.             "bridge-hose-line-b",

  1230.             "bridge-return-line-a",

  1231.             "bridge-return-line-b",

  1232.             "bridge-return-valve",

  1233.             "front-pump-aux-control-box-cover",

  1234.             "front-pump-rescue-switch",

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  1305.               "narrationText": "第1步，保持架桥车运行并断开取力器。保持架桥车发动机运转，确保架桥车取力器处于断开状态。",

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  1330.             "actionCode": "COMPLETE_BRIDGE-STEP-2",

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  1455.               "narrationText": "第2步，连接两车液压软管。连接支援车与架桥车液压软管。架桥车快接接头位于液压油箱右侧；支援车快接接头位于驾驶室外右下方。",

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  1457.               "errorCue": "collision-error",

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  1479.             "stepCode": "BRIDGE-STEP-3",

  1480.             "actionCode": "COMPLETE_BRIDGE-STEP-3",

  1481.             "number": 3,

  1482.             "title": "打开支援车回油截止阀",

  1483.             "targetId": "bridge-return-valve",

  1484.             "targetName": "打开保障车回油截止阀",

  1485.             "mode": "inspect",

  1486.             "interaction": "mechanism-operation",

  1487.             "instruction": "打开支援车液压油箱快接接头处的回油截止阀。",

  1488.             "guidance": "打开支援车液压油箱快接接头处的回油截止阀。",

  1489.             "warning": "",

  1490.             "success": "打开支援车回油截止阀：三维操作已保存",

  1491.             "cameraPolicy": "focus",

  1492.             "action": {

  1493.               "kind": "mechanism-operation",

  1494.               "targetId": "bridge-return-valve",

  1495.               "requiresPlacement": false,

  1496.               "durationMs": 700,

  1497.               "mechanism": {

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  1499.                 "steps": [

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  1501.                     "targetId": "bridge-return-valve",

  1502.                     "kind": "rotate",

  1503.                     "axis": [

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  1505.                       1,

  1506.                       0

  1507.                     ],

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  1509.                     "toleranceDegrees": 8,

  1510.                     "directionHint": "打开保障车回油截止阀"

  1511.                   }

  1512.                 ]

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  1517.             "assessment": {

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  1522.               ],

  1523.               "passPolicy": "all-required"

  1524.             },

  1525.             "audio": {

  1526.               "narrationSource": "offline",

  1527.               "narrationText": "第3步，打开支援车回油截止阀。打开支援车液压油箱快接接头处的回油截止阀。",

  1528.               "successCue": "ui",

  1529.               "errorCue": "collision-error",

  1530.               "narrationUrl": "/legacy/virtual-training/narration-revisions/junhao-v2-20260921/TASK-VIRTUAL-006-step-03.mp4",

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  1532.               "narrationVideoAssetCode": "DH_983218ACA84345B5B032A5DFA8F08E4E",

  1533.               "digitalHuman": {

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  1535.                 "mode": "video",

  1536.                 "videoSource": "library",

  1537.                 "videoId": "60",

  1538.                 "videoName": "重型支援桥液压泵应急替代 · 3 打开支援车回油截止阀",

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  1541.                 "generatedVideoUrl": "",

  1542.                 "generationStatus": "generated"

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  1544.               "narrationFallbackUrl": "/legacy/virtual-training/narration-revisions/junhao-v2-20260921/TASK-VIRTUAL-006-step-03.wav",

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  1546.               "safetyUrl": ""

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  1551.             "stepCode": "BRIDGE-STEP-4",

  1552.             "actionCode": "COMPLETE_BRIDGE-STEP-4",

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  1554.             "title": "打开互救作业开关",

  1555.             "targetId": "front-pump-aux-control-box-cover",

  1556.             "targetName": "打开辅助控制盒盖",

  1557.             "mode": "inspect",

  1558.             "interaction": "mechanism-operation",

  1559.             "instruction": "打开辅助控制盒上的“互救作业”开关。",

  1560.             "guidance": "打开辅助控制盒上的“互救作业”开关。",

  1561.             "warning": "",

  1562.             "success": "打开互救作业开关：三维操作已保存",

  1563.             "cameraPolicy": "focus",

  1564.             "action": {

  1565.               "kind": "mechanism-operation",

  1566.               "targetId": "front-pump-aux-control-box-cover",

  1567.               "requiresPlacement": false,

  1568.               "durationMs": 700,

  1569.               "mechanism": {

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  1571.                 "steps": [

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  1573.                     "targetId": "front-pump-aux-control-box-cover",

  1574.                     "kind": "rotate",

  1575.                     "axis": [

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  1577.                       1,

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  1579.                     ],

  1580.                     "pivotEdge": {

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  1582.                       "axis": [

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  1584.                         1,

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  1586.                       ],

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  1591.                     "directionHint": "打开辅助控制盒盖"

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  1594.                     "targetId": "front-pump-rescue-switch",

  1595.                     "kind": "rotate",

  1596.                     "axis": [

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  1598.                       0,

  1599.                       1

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  1602.                     "toleranceDegrees": 8,

  1603.                     "directionHint": "打开互救作业开关"

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  1620.               "narrationText": "第4步，打开互救作业开关。打开辅助控制盒上的“互救作业”开关。",

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  1622.               "errorCue": "collision-error",

  1623.               "narrationUrl": "/legacy/virtual-training/narration-revisions/junhao-v2-20260921/TASK-VIRTUAL-006-step-04.mp4",

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  1644.             "stepCode": "BRIDGE-STEP-5",

  1645.             "actionCode": "COMPLETE_BRIDGE-STEP-5",

  1646.             "number": 5,

  1647.             "title": "打开滤油器出口连通球阀",

  1648.             "targetId": "bridge-filter-valve-1",

  1649.             "targetName": "滤油器出口球阀 1",

  1650.             "mode": "inspect",

  1651.             "interaction": "mechanism-operation",

  1652.             "instruction": "打开两个输油滤油器出口处的连通球阀。",

  1653.             "guidance": "打开两个输油滤油器出口处的连通球阀。",

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  1675.                     "directionHint": "打开第 1 个滤油器出口球阀"

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  1682.                       1,

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  1704.               "narrationText": "第5步，打开滤油器出口连通球阀。打开两个输油滤油器出口处的连通球阀。",

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