她的目标是研制一个自动化机器人，以帮助人们从事有困难的水下作业——例如关闭泄漏石油的阀门。

The aim is to produce an automaton that could help people do difficult jobs underwater-shutting off leaking oil valves, for example.

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在喝酒的同时吃一些食物会使酒精的吸收速度放慢，因为胃的底部有一个阀门，在你进食的时候会关闭，等食物消化之后才会打开，将其送入小肠。

Consuming food along with alcohol causes it to be absorbed more slowly, since a valve at the base of the stomach closes to allow for digestion before sending it along.

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这辆车头的主要部分都被一台蒸汽机占据着，蒸汽机有一堆的阀门，喷口，压力计和庞大的火炉

The main space in the train cars is taken up by the steam generator with various valves, nozzles, manometers and a huge furnace.

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