Undo the oil drain plug on the oil container and drain off the oil.
拧下机油箱上的放油塞，并排放机油。
The paper introduces the specific advantage and the structural patterns of such soft oil container, and the roles of those structural composing parts as well.
文中介绍了这种软体油罐的特有优点和结构形式，及其结构各组成部分的作用。
The paper introduces the specific advantage and the structural patterns of such soft oil container, and the roles of those structural composing parts as well.
文中介绍了这种软体油罐的特有优点和结构形式，及其结构各组成部分的作用。
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