浸入式润滑,水下润滑

submerged lubrication的用法和样例：

例句

External components for the oil pump pressure lubrication oil lubrication system of forced circulation type.外部零件润滑为油泵压力供油强制循环式润滑系统。

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The first cable was put down during the years 1857-1858; but after transmitting about 400 telegrams, it went dead. 第一条电缆是在1857年和1858年铺设的。但传送了大约400次电报后，它就失灵了。 In 1863 engineers built a new

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There have been centuries of tension along the Nile between Arabs and Nubians, 25 people were recently killed near here, and many more were injured during clashes between Arab and Nubian families, many Nubians still feel ostracized from Egyptian life

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Shicheng City: Where time travel is possible

BEIJING, March 18 (Xinhuanet) --In February this year, Chinese National Geographic magazine published a series of exquisite pictures about Shicheng City (literally, Lion City), and since then, the public's strong interest in the city has been aroused

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Now let's get some of the science behind the cold. What is driving these temperatures and how long is it expected to last. We bring in meteorologist Alex Wilson of US' Weather Channel. As even talking about this unusual cold, something you've been he

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