The mains switch is located on the rear cover along with the ac inlet, all the other knobs and jacks are on the front.
电源开关位于后盖一起交流入口，所有其他的旋钮和插孔都在前线。
The system uses a vent fan, a manually adjustable backpressure damper, a differential pressure-sensing gage, and an inlet air filter high differential pressure alarm switch.
此系统用一个排气扇，手动调节反压闸，压差传感器和一个进气过滤器压差高报警开关。
There are two one-way valves for water inlet and outlet, which cooperates with floating ball in water tank to play switch role.
进出水口有二个单向阀，水箱内置有浮球装置，该装置和二个单向阀共同起开关作用；
When the water level drops, the main valve is composed of a floating ball switch control to open the water inlet to the water tank, automatic replenishment.
当水位下降后，主阀由浮球开关控制打开进水口向水池汪水，实现自动补水。
Before closing the switch to allow electric current to flow to the heater, make certain that the heater is full of water and that the cold water inlet valve is open.
在打开电源开关之前，要确保热水器处于满水状态，冷水进水阀门处于开启状态。
Lower device ~ lower casing, charger inlet, tail shaft assembly, tensioner, and with optional rotary detector and level switch.
下部装置——包括下部机壳、进料口、尾轴装配、张紧装置，并有旋转探测仪、料位开关供选配。
The control end of the two-position five-way valve (8) is connected with a compressed air inlet pipe through a switch (11).
两位五通阀(8)的控制端通过开关(11)与压缩气进气管连接。
The machine body is also provided with a negative iron output hole, a timing switch, a power supply indicator light, a wind inlet, and a power supply line, etc.
机体上还设有负离子输出孔，定时开关、电源指示灯、进风口及电源线等。
The machine body is also provided with a negative iron output hole, a timing switch, a power supply indicator light, a wind inlet, and a power supply line, etc.
机体上还设有负离子输出孔，定时开关、电源指示灯、进风口及电源线等。
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