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甚至还觉得是一种累赘，要是没有这一层身份，说不定大哥哥早就来见自己了。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.哈哈哈。Method 2:Ouyang Kerui, employee of Guangzhou Branch of China Tower Co., Ltd.: We are working to meet the needs of the three major operators in the early stage of infrastructure construction. We can use time to say that we are racing against time.四十岁的精神病医生梁国辉被初步确诊为肺癌，生命，只剩下半年的时间。梁国辉的妻子郑洁，是中心医院重症监护室的主任。正忙着落实梁国辉的工作调动问题。作为丈夫，作为孩子的父亲，郑洁对梁国辉的评价就三个字：不合格！她认为如果梁国辉继续在精神病院干下去，日子就没法过了。梁国辉瞒着家人让铁哥们儿李长江立遗嘱。李长江哭了，说既然老天爷给了一个大限，就做你最想做的事吧。梁国辉语出惊人，说我想休妻！死亡的恐惧和生存的烦恼同时折磨着梁国辉。就这时候，阳光一样的华硕走到了梁国辉身边。