Standard accessories include a test hook, extension rod, and compression plate shown below.

标准配件包括挂钩、伸长干和压缩板。

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The interface part and extension rod, particularly important is the radial run-out accuracy, cantilever length, vibration performance and replaceable.

对接口部分和接长杆而言，特别重要的是径向摆动精度、悬臂长度、振动性能和可换性。

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The strength of fork rod is adjusted. The extension of the working platform is calculated to get the largest load it can support.

为变电站用高空作业平台的使用提供依据，并且为高空作业平台特别是工作台面可伸缩的作业平台提供了一种叉杆强度计算参考方法。

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