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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.如此反复转折，最后，他们从一处山壁内走出来，沉沉暮色中，只见外面是一条峡谷，南北两边都是悬崖峭壁，上面露出一线天光。故事讲述来自因帝国镇压而痛苦不堪的村子的少年剑士塔兹米和幼驯染的伙伴一起出发前往帝都谋生在抵达帝都的途中遇到歹徒夜袭，与伙伴分离孤单一人到达了帝都。在到达帝都的第一天就被骗光了所有钱的塔兹米，被贵族的大小姐艾莉亚收留回家。在一次与艾莉亚一起去买东西的途中，意外地得知了帝都黑暗的真相此后塔兹米与帝都的无情杀手集团NIGHT RAID的赤瞳相遇决定以NIGHT RAID一员的身份对抗帝都的所有恶势力尽管每一次，大家都是尽量高估陈启，但是到了最后，却突然发现还是一次次小瞧了他。卫讼师顿时精神一振。