Oil return is a key problem for stable and reliable operation of compressor parallel operation system.

压缩机并联运行系统的稳定可靠运行，回油问题是关键。

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Flexible Hose, Compensator, Oil Return Tube, Flexible Pipe, Metal Pipe, Stainless Steel Corrugated Expansion Pipe.

不锈钢波纹膨胀管、挠性软管、补偿器、金属软管，回油管，网套管。

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The invention oil return pipe disposed in a scroll compressor has an outlet for leading oil to the electric protector of a motor.

一种涡卷压缩机，设置回流管，回油管具有一出口用以向电动机的电动保护器引导油。

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"We are doing everything we can to contain the oil offshore, defend the shoreline and return people's lives to normal as fast as we can."

VOA: standard.2010.05.31

So, for example, at an annual expected return of 12% if I have a portfolio of stocks, bonds, and oil I can get a standard deviation of something like 8% on my portfolio.

例如，在年预期收益12%的情况下%,我有股票，债券和石油的投资组合,在这个组合里,我的投资组合可以取到8%的标准差。

耶鲁公开课 - 金融市场课程节选

On Tuesday, the U.S. Coast Guard said the fire started with a leak in a fuel-oil return line running from one of the ship's engines.

CNN: STORY HIGHLIGHTS

Hatfield said the oil return line is one of the items that is routinely inspected, but she did not say when it was last inspected or describe its condition at that time.

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KEDO, the organisation responsible for building two nuclear reactors and making interim deliveries of fuel oil in return for a freeze on the North's production of plutonium, from which nuclear bombs can be made.

ECONOMIST: Europe in the world