The Measurement of oil film thickness of engine main bearing is very important to the design improvement of engine lubricating system and the evaluation of the quality of lubricating oil.是什么意思_The Measurement of oil film thickness of engine main bearing is very important to the design improvement of engine lubricating system and the evaluation of the quality of lubricating oil.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句