鉆頭失速 的英文怎麼說
中文拼音 [zhēntóushīsù]
鉆頭失速
英文
drill stalling-
It has basically matched with low speed sealing bearing bit, but it cannot avoid its fault
它與低速密封軸承鉆頭已基本匹配,但其失效不可避免。
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