lubricating oil是什么意思？

lubricating oil的音标：...

The present invention provides a new lubricating oil composite for diesel engine.本发明提供了一种新的柴油机润滑油组合物.The explanation on the dictionary: Add fuel oil or lubricating oil.辞典上解释: 添加燃料油或润滑油.This lubricating oil increases the ...