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P.sendline (payload1)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.Forty years later, the College Entrance Examination Day: June 8 (Thursday) at 19:40, please pay attention to Shanghai Education Television.不仅如此，凡问到陈老爷，他总是吞吞吐吐，然后说自己年纪大了，记不清了，儿子年轻，应该问儿子。毕业于同一所大学、同一班级的好友张桦林、林强、舒凡、苗飞在京城开始了他们的记者生涯。张桦林的女友何琪不愿与桦林分开，不顾父母的反对，辞掉工作，只身来到北京与桦林厮守。感动之余桦林却为如何安置何琪犯了难。在舒凡等人的帮助下。桦林租下一间小屋与何琪结了婚。不久，何琪怀了孕。桦林为了生计，决意要和苗飞去“走穴”。何琪不同意，俩人第一次发生了争执。桦林和林强被报社派去赴灾区采访。他俩联手揭露了一个截留扶贫款、假冒先进的典型。桦林因此被殴伤。祸不单行的桦林，不慎煤气中毒。命是保住了，可何琪却失去了孩子。深受刺激的桦林在一连串的打击下开始消沉，并做出了令何琪意外的举动，辞掉了报社的工作，下海做起了生意。舒凡在电视台创办的“新闻调查”栏目成了台里的名牌节目，受到了观众的欢迎。这日，他接到了外地一厂家的投诉，告北京一家公司有欺诈行为。舒凡决定亲自去调查。深知此事与桦林有牵连的何琪，想劝阻舒凡并告之真相。可舒凡却不辞而别，当夜便登上了西去的列车。无奈之中，何琪只得硬着头皮去找已与她分居的桦林。桦林对此并不描述现代日本医学界的的残酷现实，医生们寻求成长和遇到的挫折，悲喜交加与令人感动的故事。 以把医院当“服务业”，宣导“患者优先”的佐佐井纪念医院为舞台，在那里工作的医生们有着各式各样的问题：一位被“怪兽病人”反复骚扰的年轻女医生，一位性格开朗被患者喜欢的前辈女医生却有医疗诉讼苦恼，一位是与患者保持距离却乃卷入伤人事件的同事医生。这样的他们，到底能找到希望吗？(2) Electromagnetic time relay has short delay time (0.3 ~ 1.6 s), but its structure is relatively simple and is usually used in power failure delay occasions and DC circuits.