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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.When I think about this matter again, I feel that he is lucky in the real misfortune. He is more deadly than Jiang Yong in the position where he was splashed. However, due to the self-help measures taken and the help of some people, he was lucky enough not to be seriously injured in the end.更何况，这部电影由启明影视和青龙影视联合投资拍摄，该有的宣传一点也不会少，只会更多。在著名的阿若瓦比女校,遭到排斥和霸凌的女生策划了一系列危险的报复计划来回击霸凌者。二十集系列轻喜剧《起步停车》视角独特，内容新奇，以多角度全方位手法描写九十年代中期社会方光未艾的“学车热”现象，通过1194号教练车上一班性格、职业迥然不同的学员和他们校内外色彩斑阑的生活，反映了驾校怎样将一群散兵游勇式的“马路杀手”培养成观念强、守纪律的合格首都驾驶员，以一集集鲜活生动的事实，幽默而又深刻的刻画出教练员和交警们才智劳动的巨大付出和他们甘心奉献的可贵精神。Street Fighter 2少女披着一袭轻纱般的白衣，犹似身在烟中雾里，看来约莫十六七岁年纪，除了一头黑发之外，全身雪白，面容秀美绝俗，只是肌肤间少了一层血色，显得苍白异常。