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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.思女心切的"美厨大师"李跃华自感老之将至孤寂冷清,急催爱女湘湘回国共度新春佳节并完婚了却终身大事.留美两年的湘湘早与洋小伙儿劳伦思情投意合,却又一直瞒着思想传统的老爸.关键时刻,好友小西慷慨出借自己的男友程子,以解湘湘燃眉之急.在李父的接风宴上,天性自然淳朴的程子对一桌中华美食的"满腔热情"赢得了李父的欢心,却让湘湘尴尬异常!与此同时,劳伦思也踏上了北京的热土.劳伦思一系列异于常人的打扮弄得众人摸不着头脑,疑心顿起.而由于程子的意外出现,也让劳伦思对湘湘的忠诚产生了误解,引发了新的喜剧故事!不等众人反应过来，她一指紫茄道：就好比紫茄这身衣裳，是京城流行的。　　那是个充满朝气的真诚年代，马刚与李莉关于幸福的理解，就如同军营的绿色，医院的白色那般单纯。爱情与婚姻接踵而至，两个人紧张着，憧憬着，他们希望能永远在一起。而就在此时，意外发生了：李莉遭到了歹徒的强奸！纯洁的新娘之梦破灭了，残酷的真相让马刚濒临崩溃，李莉的心碎了，她觉得自己已经不再纯洁。2.5 Supplier Participation以灵异、奇幻、轻松的手法，道出现代人为口奔驰，而忘记亲情可贵的唏嘘。一对热心助人的开心鬼，用神奇的力量，协助能见鬼的大哥，为弟妹遮风挡雨，用爱紧扣一家人。一个又惊又喜、有笑有泪的治愈系温情喜剧。刘若男和袁晓凡是一对女强男弱的夫妻。时时吵吵闹闹，离婚常挂嘴边。袁晓凡的好友，求子心切的郭伟达为了帮老婆杨琳完成歌星梦,配合经纪公司炒作，没想到真的炒火了杨琳，而他的事业自此一蹶不振。意外怀孕的刘若男经历了匪夷所思的孕期诞下女儿，袁晓凡“不务正业”当起了全职奶爸，夫妻俩人的战争正式拉开帷幕。小凡用独创的科学养育法和事业萎靡的郭伟达合伙办起了日托小班。若男无法接受小凡的所谓“事业”，两人对彼此心灰意冷。老人们为了阻止他们离婚办法用尽，俩人在和父母的对战中终于明白：婚姻是责任，是共同维系。杨琳发现怀孕，经历过才知道什么最该珍惜，杨琳最终放弃所谓“星途”回归家庭。最终，因为孩子而找到自身价值的郭伟达和袁晓凡两个男人，与各自的那位最适合自己的老婆都行走在幸福的婚姻之路上