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用电补偿大气压和系统压力的变化.Electricity compensates for barometric pressure as well as system pressure variations.首先,利用大气压将水抬高30英尺.First of all it raised water through 30 feet by utilising the pressure of the atmosphere.曲线上的数字表示围压的大...

“大气压”的拼音为：dà qì yā...