Now many frozen type dryer are equipped with heat flow bypass valve or needed to controlcircuit.
现在许多冷冻式干燥器都配备有热气流旁通阀或所需要的控制电路。
2
Experimental results have shown that the system features precise speed control and simple design as compared to the sensing circuit controlled by T-type proportional speed regulation valve.
试验结果表明，与比例三通调速阀控制的敏感回路相比，该系统速度控制精度高，结构简单。
3
For KFR type air-conditioner, if refrigeration normal, not heating, its fault mainly in four electromagnetic valve or its controlcircuit.