如果抽取地下热水而又不将其泵回，地表就会下沉。
The surface of the ground can sink if hot groundwater is withdrawn without being replaced.
抽取器由一根塑料管子与泵相连。
真空泵开始抽取电子枪管里的空气。
The vacuum pumps begin sucking the air from the barrel of gun.
气体在泵内无压缩，适宜抽取可凝性气体。
Gas can not be compressed in the pump, so our pump can get coagulable air.
气体在泵内无压缩，适宜抽取可凝性气体。
Gass can not be compressed in the pump, so our pump can get coagulable air.
气体在泵内无压缩，适宜抽取可凝性气体。
Air can not be compressed in the pump, so our pump can get coagulable air.
气体在泵内无压缩，适宜抽取可凝性气体。
Air can not be compressed in the pump, so our pump can get coagulable air.
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