Warning! System fluid may be hot. Use Caution when manual venting hot water systems.

警告！系统液体可能是热的。对热水系统手动排气时要小心谨慎。

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When he got back, he switched labs to study how cerebrospinal fluid nourishes the developing nervous system.

回来后，他将实验室里的研究课题转向了脑脊液如何滋养发发育中的神经系统。

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An electric motor propels the bus, but its regenerative braking system also pressurizes hydraulic fluid.

一个电动发动机推动这辆公交车，但其再生制动系统也对液压流体加压。

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This complex system throughout the body makes and transports a protective fluid called lymph.

VOA: special.2011.03.23

The administration is banking on the fact that the economic crisis has made the political system more fluid.

CNN: Borger: Obama staking presidency on domestic policy

Rather, the rapid rise of mobile shopping and location-based services have set the stage for a new kind of shopping experience, one that blends online, in-store and mobile into a single, fluid system that finally allows consumers to get what they want, for the price they want, when they want it.

FORBES: How The Web And Smart Phones Are Saving Offline Retailers

Two hours before the explosion there was more fluid entering the system, indicating a likely influx from the well.

FORBES: Top Kill: BP's Must See TV