根据气体状态方程和平衡方程，推导出在某点真空表反映的真空度值与孔压计反映的孔压差的理论关系式。
The theoretical formula about vacuity in vacuum tube and pore-water pressure at the observation point was obtained in this paper by using equation of gas state and equilibrium equation.
所述常温测温计是一种具有护套的玻璃棒式温度计，它能够 现场显示被测点温度值。
The normal-temperature thermoscope is a glass-stem thermometer with a sheath, which can display the temperature value of the measured point on site.
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