lubrication例句
Lubrication reduces noise and wear.
潤(rùn)滑作用能減少噪音和磨損.
We shall require more
lubrication oil this month.
這個(gè)月我們需要更多潤(rùn)滑油.
Sludge can also clog oil passages and prevent normal engine
lubrication.
油泥還會(huì)阻塞油路,妨礙發(fā)動(dòng)機(jī)的正常潤(rùn)滑工作.