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(1) Air damping type time relay is also called air bag type time relay. It delays according to the resistance generated by air compression. Its structure is simple, its price is low, and its delay range is large (0.4 ~ 180s), but its delay accuracy is low.This is our bounden duty, but also our duty.这个故事是讲前世今生的 有一个名为Pinkaew的手镯出现 Pinlada是前世女主的名字他对车里伺候的小丫头道：书儿，交给你办一样差事。"Ordinary attacks are all attacks and can attack twice. Do you like them?"Since the public's awareness of environmental protection awakened, the word garbage classification has gradually entered our life. In the past ten years or so, what has been the progress of garbage classification and has it kept pace with the times? There is a long way to go to sort out garbage, but it is also searching up and down. Waste collectors who graduated from the Chinese Academy of Sciences have done something big. They have to sweep the code for garbage collection. Is this reliable? This week, we sneaked into the streets and listened to what everyone said.