在当今生产、生活中空调被广泛使用，然而传统的定速空调由于耗电量多、开启电流大、运行效率低等缺点，造成了电能大量的浪费。
The air condition is used widely in our life. The traditional air condition is speed changeless with low efficiency and large startup current, and the lots of electric energy are wasted.
当开关转变为任何变速“开启”的设置时，电流可以通过开关接到地上，继电器开启。
When the switch is turned to any of its variable speed "on" Settings, current can flow though the switch and down to earth to allow the relay to switch on.
温控器开启后，通往电机的电流就会被切断。当电机温度冷却下来后，温控器将自动重新启动电机，泵设备又恢复正常运转。
When the thermostats open, power to the motor is interrupted. When the motor has cooled down, the thermostats automatically reset and the pump can resume normal operation.
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