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1·It consists of five basic parts, the compressor, the condenser, the evaporator, the receiver, and the refrigerant flow control valve or the thermostatic expansion valve.

它由压缩机、冷凝器、蒸发器、制冷剂流量控制阀和或恒温膨胀阀五个基本配件组成。

2·This paper describes the stability of control loop consisting of refrigeration evaporator and thermostatic expansion valve. It may directly influence refrigerating efficiency and operation safety.

分析热力膨胀阀和蒸发器调节系统的稳定性，它直接影响着制冷效率和运行安全。

3·Products are temperature controller, electric two-way valves, electric control valves, Dynamic balancing and thermostatic radiator valve.

产品有温度控制器，电动二通阀，电动调节阀，动态平衡阀，及散热器恒温阀等。