• The dynamic loads of engine in tractor-trailer unit are classified into four kinds with frequency structure.

    拖拉机挂车机组工作时动态载荷按其频率结构可分成

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  • Great care had to be taken with the control systems for a powered trailer because, when turning, it can push the tractor unit over.

    拖车运行必须谨慎操纵控制系统,否则牵引机被推倒

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  • Great care had to be taken with the control systems for a powered trailer because, when turning, it can push the tractor unit over.

    拖车运行必须谨慎操纵控制系统,否则牵引机被推倒

    youdao

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