我清除掉了所有的油脂，以油替换，因此它在很低的温度下运转得更好。

I clean out all the grease and replace it with oil so it works better in very low temperatures.

《柯林斯英汉双解大词典》

以油中溶解气体为特征量对变压器进行故障诊断是一种使用广泛而十分有效的方法。

It is a widely used and quit efficient method to use gas dissolved in oil as character to diagnose transformer fault.

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如果利用原子能来开动机器方面的工作进展迅速，那么以油为动力的发电机可能让位于新型发动机。

If progress in using atomic power to drive machines is fast enough, it is possible that oil-driven engines may give place to the new kind of engine.

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