基本解释[機械工程]頂鐓凸輪英汉例句雙語例句Manual clamping, the motor drives the cam to upsetting and butt welding, then annealing manually.手動固定夾緊，電機帶動多組凸輪進行頂鍛對銲，然後再進行手動二次退火処理。upsetting cam更多例句专业释义機械工程頂鐓凸輪