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.
USA Network续订《罪人》第三季，马特·波莫主演该季！比尔·普尔曼回归出演，普尔曼将继续饰演警探哈里·安布罗斯。他调查一起车祸案件，在调查过程中，他陷入了职业生涯中最危险和最令人不安的境地。 波莫将饰演多切斯特居民，在一场意外中醒来后，他寻求安布罗斯的帮助。
可以，我并不着急。
北宋年间，天下瘟疫盛行，皇帝命钦差太守徐正澜为特使，前往古刹大佛寺，将住持与佛祖释迦牟尼舍利子连夜护送进京。不久后，此事便传遍京西南，途径渭州时，惨遭高太尉、蔡京与六部尚书李熙正等人的陷害，渭州捕快宋飞受命追回佛宝，并夸下豪语，若追不回佛宝定提头来见，可谁知宋飞夺回佛宝后，途中中计，与人拼酒，醒来后发现被调了包，佛宝再次丢失，宋飞被刺配江洲……
之前范亚父有交待，实际上对西楚国最有好处的就是和汉国和谈结盟，然后共同对付越国。
On July 11, the practice team visited Jiangyang Expectation Primary School in Baoshan District. Entering the school gate, a row of large characters impressively printed into my eyes: "Expect to sow there". But in the school, the team members saw broken windows and doors, falling ceilings and half of the radio cover hanging... Jiang Yang expected a vice principal of the school to receive them and introduce them to the basic situation of the school. The headmaster told the team members that although the conditions were relatively poor, the school still adhered to the school-running philosophy of "everything for children".
哦哦，应考是大事。
Recipient of the 2007 Golden Globe Award for Best Drama Television Series and multiple Emmy nominations, including Outstanding Drama Series for the past two years, "Grey's Anatomy" returns to the ABC Television Network for its fifth season.Is "happily ever after" possible for Meredith Grey and Derek "McDreamy" Shepherd? With Meredith experiencing a breakthrough in therapy - the realization that she and Derek can be extraordinary together, rather than ordinary apart -- she and Derek now face the highs and lows of being a committed couple.Continuing their first year as residents at Seattle Grace Hospital, Meredith, Cristina Yang, Izzie Stevens and Alex Karev have interns of their own to mentor, including Meredith's half-sister, Lexie Grey. Lexie has become a roommate and confidante to George O'Malley, who, after divorce with Callie, a breakup with Izzie, and learning that he failed his residency test by only one point, is striving to get both his professional and personal life back on track.After attending to his girlfriend Rebecca's mental illness on his own, and revealing that he had gone through this with his own mother, Alex finds solace in Izzie's arms. Alex must continue through this difficult time, whether or not Izzie remains by his side.Cristina, having finally won out over her tough-as-nails mentor, Erica, is back on track as a surgeon - but is there a chance for new love in her life as well?With the encouragement of Mark "McSteamy" Sloan, Dr. Callie Torres has taken a chance on love with cardiothoracic surgeon, Erica Hahn; now, she and Erica must figure out what happens after the first kiss.Overseeing the residents is the no-nonsense Chief Resident, Miranda Bailey. Facing marital troubles and the difficulty of balancing her work and personal life, Bailey has handed her responsibilities as head of the free clinic over to Izzie. Also striving for balance is Chief of Surgery, Richard Webber, who has reunited with his estranged wife, Adele.The doctors of Seattle Grace Hospital deal with life-or-death consequences on a daily basis - it's in one another that they find comfort, friendship and love. Together they're discovering that neither medicine nor relationships can be defined in black and white. Real life only comes in shades of grey."Grey's Anatomy" stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Katherine Heigl as Isobel "Izzie" Stevens, Justin Chambers as Alex Karev, T.R. Knight as George O'Malley, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Sara Ramirez as Callie Torres, Eric Dane as Mark Sloan, Chyler Leigh as Lexie Grey, and Brooke Smith as Erica Hahn.
这个大汉有着两条如同发墨般的浓眉，棱棱的颧骨，乱糟糟的胡渣子，瘦骨嶙峋的大手，一柄已锈得快烂的铁剑……这就是天下第一剑燕南天？虽然书中还没有揭示答案，但是郑武感觉已经**不离十了。
在特殊的历史背景下，工程兵出身的魏东晓随着部队到南滨，和战友们用双手建设南滨，转业后进入政府工作一段时间选择辞职，创办了自己的通信公司。几经波折，魏东晓凭着一股劲儿愣是将通信公司经营活了，并发展成为国内的龙头企业，而魏东晓更是不满现状，带着同事们打了一个又一个硬仗，最终成为世界通信行业的领军人物。杜芳也不甘落后，从开砂锅粥摊开文印社，最后做起了广告公司，成为南滨十大广告公司之一。为了解决部分工程老兵的生计问题，夫妻两个特意开办地产公司。与此同时，夫妻俩流落在香港的儿子蚝仔找回了，大儿子虾仔则从魏东晓公司离开创办了互联网科技公司，最终和母亲一起打造智能养老社区，用科技改变生活。
钟隐冷喝道：怎么？想要一死了之？这一剑下去，子婴公子能活过来，子夜能回来吗？柳成垂下头下，泣不成声道：师父，我……略微的寂静之后，柳成起身道：师父，我现在去鸿门，救不回来子夜师妹，我也就没脸回来见您老人家了。
黎水道：是啊，胡大哥。
在庄稼丰收的时候，小镇上举行了狂欢活动，突然，一阵琴声从钟楼最高处传了出来，那女孩又要开始唱歌了，她的歌声讲述了一段最荒诞的爱情故事……
历经数年艰辛，小月桂成立滩簧班子，重返大上海，在第二代上海王黄佩玉帮助下，成为“申曲名伶”筱月桂（余男 饰）。她发现黄佩玉与常力雄之死有关，遂与曾做两代上海王跟班的余其扬（凤小岳 饰）设计，杀死黄佩玉，助余其扬成为洪门山主中，第一个银行家。
一九七八年十二月，中共十一届三中全会召开，决定把党和国家的工作重点转移到经济建设上来，作出了改革开放的重大决策，实现了新中国成立以来党和国家历史的伟大转折，开创了社会主义事业发展的新时期。一九八四年，“百万大裁军”战略宣布后，方邦彦、何有邻、康宁三人几乎同一时间从部队转业，分别进入外贸国企永江纺织厂、省计委以及乡集体服装厂，开始了各自的改革之路。彼时，改革风起云涌。在经历八六年“第一次价格闯关”失败后，方邦彦也遭遇了纺织厂改制困境并被迫离开。随着改革的春风再起以及“九二南巡讲话”的发表，方邦彦又看到了新的希望。他与有志青年林云借风创业，走在了互联网大军的第一列。在国家理顺了价格体系并且“第二次价格闯关”成功后，方邦彦不忘初心，毅然回到纺织厂，带领大家积极参与国际竞争，使濒临倒闭的外贸国企扭亏为盈。进入新世纪后，中国重新开启“入世谈判”，方邦彦抓住机遇，在国家政策的支持下完成了自己当年纺织厂的改制梦想，突破重重关卡，实现了国企的现代化企业制度的转型成功上市迈进世界五百强，并且一鼓作气完成海外并购。与此同时，他的老对手也是大舅哥的战友何有邻也渐渐地在改革的浪潮中从墨守成规，拘泥于体制开始解放思想，积极帮助企业改制，并且将全能型政府职能转变为服务型职能；而他的老部下康宁在搞活集体企业的同时却在利益驱动之下将企业据为己有，并利用收购纺织厂生产线来进行走私犯罪，甚至不惜嫁祸昔日部队领导方邦彦，最终锒铛入狱。出狱后，康宁流落中东，并被黑道追杀，最后被自己恨之入骨的方邦彦救回，羞愧难当，在方邦彦与何有邻的帮助下重新开始新的生活。“一带一路”的战略发布后，三个已近耳顺之年的兄弟，举杯展望，风再起时，再度扬帆远航。
李sir（李修贤饰）是一名香港警察，为人公平正直。黑社会老大文叔（许绍雄饰）金盆洗手，退出了江湖，而接手的凯明却急于冒进，干了许多违法的事。李sir为了维护正义，开始追查凯明……
What we understand is that if a single schema is instantiated, it will only be instantiated once. To implement a single schema, we simply use a variable to identify whether the class is instantiated. If it is not instantiated, then we can instantiate it once. Otherwise, we will directly return the instantiated object.
