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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.First the knockout round robin.Purple-red: loquat*, banyan (ficus microcarpa), cactus fruit …　　对感情一直保持着诗人式的天真的李良在网络上邂逅了一位美丽女子，并对她动了真情。一日，他隆重将她介/poke (dial)Next, we will listen to the onchange event in the drop-down box of colorSelect and the oninput event in the numberInput input box respectively, and then make corresponding processing in these two events.姥爷赵寰李，是留日学习机械专业的优秀人才。日军的重重紧逼终于激起了他抗争的决心，与共产党人携手粉碎了日本人建造武器工厂的计划，却也因此失去了未婚妻、女儿、小妹等人。姥爷心灰意冷，只想了此残生。在被日军追杀时，被街头卖笑女小红所救，并意外卷入日军的“西部计划”危机中。为了挣扎求存和为被日军灭口杀害的一百多工人复仇，揭穿日军暗杀民主爱国人士的阴谋及获取南京大屠杀的证据。姥爷赵寰李在地下党的帮助和军统特工的暗中支持下，与日本特高课名宿展开了激烈斗争。姥爷以其高超的智慧和出类拔萃的机械专业技巧，终于营救出民主爱国人士，并协助八路军制作了山炮，毁掉了日军的“西部计划”秘密基地，获取了南京大屠杀的证据，为抗战胜利和东京大审判立下了不可磨灭的功勋。