Which is constituted by the auto controlling system of art kettle, pump and joint pipe, PLC and touch screen.

由工艺罐、热水罐、泵及连接管道、PLC和触摸屏组成的自动控制系统组成。

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The water flow velocity in the suction pipe, which is crucial for evaluating the performance on pumping fish, can be measured by the pumped water flow rate of the riser in an air lift pump system.

气力提升泵的水输送量反映了提升管进口的流速情况，而进口流速是衡量吸鱼效果的重要因素。

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A by-pass capillary tube was added on the discharge pipe behind the four-way valve and a tube was added in an accumulator in a heat pump system to solve the problem.

在热泵系统四通换向阀后的排气管上加旁通毛细管和在气液分离器中加过冷管。

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