原文: The oil must be of the correct thickness; if it is too thin it will not give sufficient lubrication, and if it is too thick it will not reach all parts that must be lubricated.译文:润滑油的浓度必须正确,如果它太稀它将起不到应有的润滑作用,如果它太稠它将流不到所有需要润滑的零件上去。
原文: The oil must be of the correct thickness; if it is too thin it will not give sufficient lubrication, and if it is too thick it will not reach all parts that must be lubricated.译文:润滑油的浓度必须正确,如果它太稀它将起不到应有的润滑作用,如果它太稠它将流不到所有需要润滑的零件上去。
