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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.再看下去也无益，不如别处去分析。李宝莉是那个年代所有男青年梦寐以求的终生伴侣，有样貌有工作。小学文化的宝莉爱慕大学生邻居王仲，可当王仲当着自己面称呼别人“亲爱的”，她的梦想坍塌了，这三个字从此成为她的人生情节。宝莉舍弃了痴情的追求者郑坚，嫁给人品差劲却会以“亲爱的”做情书开头的大学生工人马学武。八年后，趾高气扬的厂办主任太太李宝莉，住进了计划体制内的两居室楼房。不料，命运和时代开起玩笑，马学武移情，却怪罪于宝莉与郑坚的往事。宝莉的妹妹气愤不过，匿名报警。马学武被公安局捉奸，随后遭遇撤职、下岗。接踵的打击最终把这个懦弱的人逼进了长江。执拗的宝莉为了“亲爱的”人生信仰，做起长江边上的“女扁担”，负着独立养家的重任。宝莉奉献的肝脏换来“亲爱的”儿子的忏悔。她向命运和世人证明，有信仰，人生就会美好。Definition:　　方言说“我什么也做不了时”，杜梅说“你可以做我的丈夫”，就如这般跌跌撞撞，方言和杜梅最终也走进了婚姻殿堂。方言外冷内热，对杜梅又爱又拙于表达；而杜梅敏感，与方言的矛盾因此频频升级，两人的身边似乎也出现了各自的“情敌”。然而，当彼此发现自己是对放心中无法替代的爱人时，一切却又已经无法挽回……9-2 Three Restaurants: Create three instances of the class you wrote to complete Exercise 9-1, and call the method describe_restaurant () on each instance.