An instrument used to measure pressure. A manometer consists of a U-shaped tube partially filled with a liquid that can vary in specific gravity from 1.0 (water) to 13.57 (mercury).
测量压力所用的一种仪器，压力计由部分装有相对密度在1.0(水)至13.57(汞)范围内的液体的U形管组成。
A sufficient flow of gas to produce clear difference of water level in the three manometer legs can be generated by blowing through the tube.
当有足够的气体流入时，即可发现三条管中之液体产生不同高度的变化。
A sufficient flow of gas to produce clear difference of water level in the three manometer legs can be generated by blowing through the tube.
当有足够的气体流入时，即可发现三条管中之液体产生不同高度的变化。
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