bearing up pulley 中文意思是什麼
bearing up pulley
解釋
緊輪-
Experiences from successful works have been summed up that the crux of improvement is the bearing design of the shaft supporting pulley and gear
本文總結了成功的改造經驗,指出改造中的關鍵問題是帶輪齒輪軸的支承設計。
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