As the piston travels in one direction, through a one way valve, it draws in the refrigerant gas from the low pressure side of the circuit.
活塞向一个方向移动时，环路中低压端的气态制冷剂通过一个单向阀，循环中低压端的气态制冷剂被吸入进来。
As the piston travels in one direction, through a one way valve, it draws in the refrigerant gas from the low pressure side of the circuit.
活塞向一个方向移动时，环路中低压端的气态制冷剂通过一个单向阀，循环中低压端的气态制冷剂被吸入进来。
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