• 轨道安全标准》(《联邦法典》第14卷第213部分根据最大容许速度,就九个等级铁轨明确要求

    The Track Safety Standards (49 CFR Part 213) specify requirements for nine classes of track based on maximum allowable speed.

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  • 计算表明电视塔塔楼速度响应大大超出容许最大速度限值。

    It is found that the acceleration response of the upper turret of the tower is much larger than the allowable acceleration of human comfort.

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  • 计算表明电视塔塔楼速度响应大大超出容许最大速度限值。

    It is found that the acceleration response of the upper turret of the tower is much larger than the allowable acceleration of human comfort.

    youdao

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