Now many frozen type dryer are equipped with heat flow bypass valve or needed to control circuit.
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
This device, called the manifold heat-controlvalve, is built into the exhaust and intake manifold.
这种装置称为“歧管热控制阀”，它拼装在排气与进气歧管中。
3
In addition, indoor air system, heat recovery systems, central vacuum system, fire doors Solenoid ValveControl system and indoor fire hose system configurations are rare in China.