The liquid hydrocarbon recovered from casing head gas by adsorption, compression, or refrigeration. Casing head gas is the gas recovered at the surface from an oil well.
通过吸附作用、压缩作用或冷却作用，从套管头气回收到的液态烃，为一种汽油。套管头气是从地面上的一口油井所采到的气体。
Nowadays precision dew point hygrometers are mostly the type of light-electricity detection, thermoelectric refrigeration and specula-surface condensation dew point instrument internationally.
目前国际上的精密露点仪大多为光电检测且热电制冷的镜面冷凝式露点仪。
AFG comprises five divisions: Heating Technology and Sanitary Equipment, Kitchens and Refrigeration, Windows and Doors, Steel Technology and Surface Technology.
艾府杰设有五大部门，即：采暖技术及卫浴设备部、厨房及制冷设备部、门窗部、钢铁技术部和表面处理技术部。
AFG comprises five divisions: Heating Technology and Sanitary Equipment, Kitchens and Refrigeration, Windows and Doors, Steel Technology and Surface Technology.
艾府杰设有五大部门，即：采暖技术及卫浴设备部、厨房及制冷设备部、门窗部、钢铁技术部和表面处理技术部。
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