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Time relays are divided into two types: on-time delay type and off-time delay type, and their symbols are shown in the following figure. For the power-on delay type time relay, when the coil is powered on, the power-on delay type contact acts after the delay time (the normally closed contact is opened and the normally open contact is closed), and the contact immediately returns to normal after the coil is powered off; For the power-off delay type time relay, when the coil is powered on, the power-off delay type contact acts immediately (the normally closed contact is opened and the normally open contact is closed). After the coil is powered off, the contact will not return to normal until the delay time is passed.-w594一件鸡毛蒜皮的小事，让正处婚姻危险期的陈恭和刘忆，爆发了一场以号称离婚为高潮的家庭战役，双发家长惊惶之下前来调停，不料劝架的最终反倒成了帮架的，彻底将“离婚”由叫嚣变成了事实…… 　倾情记录小吒吒作为一个顶天立地的金刚芭比渡过的七年人生。小吒吒，本名哪吒，曾用名李狗蛋，前世为太2真人大弟子，被师父投胎于李府，才得到了这段普通而又幸福的平民生活。...