boring tube 中文意思是什麼
boring tube
解釋
鉆管-
First you need the boring for the shaft, then install the stern tube into the stern frame, next fit the gun - metal or white - metal bush
首先要鏜孔,然後安裝尾軸管,接下來裝炮銅或白合金制的軸承套,也叫軸承。
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