What power source actuates a solenoid valve ________.
A.Air pressure
B.Hydraulic pressure
C.Electric current
D.Mechanical force
英文POWER和POWER SOURCE的意思都是电源。()
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丙烷机控制时间限设定值菜单()功能是不允许加/减载电磁阀得电加载的时间长度。A、CAPACITY INCREASE SOLENOID OFF TIMERB、CAPACITY DECREASE SOLENOID ON TIMERC、CAPACITY DECREASE SOLENOID OFF TIMERD、SLIDE VALVE RETURN AT SHUTDOWN TIMER
丙烷机控制时间限设定值菜单()功能是在自动加/减载模式下,如果需要降低丙烷机的负载,加/减载电磁阀将会在定时器的时间长度内对丙烷机进行减载。A、CAPACITY INCREASE SOLENOID OFF TIMERB、CAPACITY DECREASE SOLENOID ON TIMERC、CAPACITY DECREASE SOLENOID OFF TIMERD、SLIDE VALVE RETURN AT SHUTDOWN TIMER
No4 solenoid Valve的中文意思是()。
SV,采样值,英文全拼()。A、Set valueB、Specific VolumeC、Sampled ValueD、solenoid valve
单选题The refrigeration system low pressure cutout switch is actuated by ().A an electric system managerB a sensing bulb at the tail coil of the evaporatorC pressure changes in the suction lineD failure of the king solenoid valve
单选题What is the function of thermostatic expansion valve in a compression refrigeration system?()A nonexistentB for controlling pressureC for controlling superheatD for controlling the solenoid valve