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以上来源于: WordNet
N an instrument for comparing pressures; typically a glass U-tube containing mercury, in which pressure is indicated by the difference in levels in the two arms of the tube U型管测压计
The main space in the train cars is taken up by the steam generator with various valves, nozzles, manometers and a huge furnace.
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
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