Generally, the gage is put in the atmosphere, it can only measure the difference between the absolute pressure and local atmospheric pressure. It can not give out the absolute pressure.
测量压力的仪表通常处于大气环境中，不能直接测量出绝对压力，显示的是绝对压力和当时当地大气压的差值。
There is no connection between the pressure measurement of the absolute pressure gauge and the fluctuation of the atmospheric pressure. Therefore, the gauge is suitable for measuring gas and liquid.
绝压压力表的 压力测量与大气压的波动无关，适合测量气体和液体。
There is no connection between the pressure measurement of the absolute pressure gauge and the fluctuation of the atmospheric pressure. Therefore, the gauge is suitable for measuring gas and liquid.
绝压压力表的 压力测量与大气压的波动无关，适合测量气体和液体。
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