双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。
Double screw pump as a positive displacement pump, the pump suction chamber should be closely separated and discharge chamber inside.
救援队正在向330多米深的井下钻探另外三个深孔，以排出有毒气体，然后到达一个六米宽的井室，有关官员认为四名矿工就困在这个井室。
Rescue teams are drilling three additional boreholes more than 330 meters deep to ventilate toxic gases and reach a six-meter-wide chamber where officials believe the miners are.
并用该组件处理放射化学实验室排出的废水。
The RO Module has been used to treat waste water of the radiochemistry laboratory.
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