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When the coil is energized, the iron core attracts the armature and the support plate to move down, and the contact points are turned on or off instantly. The piston rod and the lever slowly decrease due to the influence of the blocking nylon. After a certain period of time, the piston rod decreases to a certain position, and the delayed action contact is pushed by the lever to act, which is in an open state, while the moving contact is closed. The delay time of the relay is the time when the coil is energized until the delay contact completes its action. When the coil is powered off, the relay is restored by the recovery action of the spring.31张雷被父亲的老战友周志强抚养长大，并把他也培养成为了一名公安民警。王翠翘端坐厅中，比之沈悯芮，多了一丝沧桑与哀怨：已经两个月没有收到徐海的信了。The output is the same as the first one, except that the adaptation method is different.一场突如其来的遭遇战，让退役特警施慧一展身手，制服歹徒解救人质的一瞬间，她也俘虏了刘春和高煜的心。可她却始终难忘绿色的军营，难忘那纯洁炽烈又刻骨铭心的童涩初恋，可惜情爱就如同风中弱草……"One morning, I got up and suddenly found that there were only a few messages in each group. At that time, my heart thumped."