revolving center是什么意思


中文翻译活动尖

网络释义

1)revolving center,活动尖2)Running Back Center,活动顶尖3)movable point frog,活动轨尖辙叉4)valve stopper,活瓣桩尖5)revolving center,活顶尖6)pile tip with glide lamellae,带活瓣桩尖

用法例句

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