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当额定速度大于4m/s时,耗能型缓冲器行程在任何情况下,最小不应小于()m。
A . A、0.42; B . B、0.54; C . C、0.63; D . D、0.9
时间:2022-12-06 14:41:54
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当额定速度大于4m/s时,耗能型缓冲器行程在任何情况下,最小不应小于()m。
A . A、0.42; B . B、0.54; C . C、0.63; D . D、0.9
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