Engines won't run without lubricants.

没有润滑油发动机就不能运转。

Part of that reason is the nature of the lubricants.

这是一个很易真正理解的主题。

It is a very good business. Lubricants will be always around.

它是个非常好的生意，路博润将基业长青。

The test methods and instrumentations of engine lubricants were also introduced.

还介绍车用机油测试问题。

If use reciprocating compressor, can choose DAA100 or DAA150 air compressor lubricants.

如采用往复式压缩机，可选用DAA100或DAA150空气压缩机油。