此方法可用于电动调压器的控制当中，也可用于检测有触点电器的各种时间参数。
This method can be used to control booster, and also can be used to measure all time parameters.
现有的韶山型电力机车空气制动系统大都采用DK—1型电空制动机作为控制部件，其核心是采用继电器有触点逻辑控制。
Existing electric locomotive air brakes of Shao Shan types are mostly used DK-1 model electric-air braking machine as control component, its core is to adopt the relay and touch logic control.
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