A packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, the O-ring 10 is further arranged on the upper part of the packing assembly 9, the upper part of the O-ring 10 is provided with a packing gland 11, the valve body 1 is provided with an arc-shaped end face 12, the arc-shaped end face 12 forms a line seal between the valve body 1 and the valve seat 7, and the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41. The arcuate end face 12 forms a line seal between the sealing surface of the valve body 1 and the valve seat 7. The water grain 41 can ensure the sealing performance of the valve seat 7 and the valve disc 4.
西安事变时，因率部抢占赤水河扭转事变局势的卫大河被贬回乡。抗战爆发，他重返前线，被派往由国共两党共同组建的中条山游击纵队，面对各种势力的相互倾轧，卫大河依然屡建奇功。在八路军团长高晓山、我党地下工作者付洋、姜雅真等人的帮助下，在与日军进行了骑马山、雪花山、永济血战及保卫根据地等一系列残酷斗争后，卫大河经历了从反共到亲共的人生蜕变，成长为一名优秀的共产党员。高晓山牺牲后，卫大河为保住游击纵队与国民党顽固派斗智斗勇，同时率陕军在中条山地区英勇抗战。他熟练地运用游击战术与日军周旋，迫使杵村久藏无法出兵，彻底粉碎了日军西进的战略企图。最终率残部于贵人峁牵制日军主力，宁死不降，血战到底，用生命谱写了一曲壮丽的英雄赞歌。
"As long as they are hit, they are basically shot one at a time. The lethality of steel balls is much smaller than that of bullets. A dozen or twenty bullets can also kill one. They are animals after all, and they are still afraid of bullets. However, the speed is fast and it is really difficult to deal with." Liu Guangyuan said.
打败仗还要经验么？当然，比如我们浙兵，就非常会打败仗。
So you said that the protective equipment did not play a protective role, Of course it did, In those days, Bulletproof vests and other things are still not popular, Helmets are the most important protective gear, I am lucky to wear a helmet, Otherwise, I would have been a martyr long ago, and I chose whether to wear a helmet or a cloth hat. There is no mandatory regulation. I heard that the artillery of the Vietnamese army at position 149 is relatively fierce, so I chose a helmet to enhance the protection of my head. I didn't expect it to be of great use in this place. To be honest, every time I think about it, I still "thank myself." Zhang Xiaobo said here and subconsciously touched his head, as if he were glad that he was wearing a helmet at that time. Otherwise, according to the description of the lethality of this large killing insect, not to mention five or one nailed to his head, the consequences would be unimaginable.
The code looks a little improved, but it still has the following disadvantages:
写一群农村姑娘忘我的劳动态度，在公社养猪事业中大胆革新的故事。
绍兴府城，以穿城官河为界，西为山阴，东为会稽，如此两县包着一府的情况实属少有，刚好就是人丁兴旺的象征，印证了绍兴的繁华，也印证了山阴会稽两地人才辈出的盛象。
The BBC documentary "Seven Years of Life" confirmed this phenomenon. They followed a group of children from different classes for 49 years and finally revealed a cruel fact: the vast majority of the children of the poor are still poor, the vast majority of the children of the rich are still rich, and the classes have been passed down from generation to generation.
1950年春，我军一支人民币工作队进驻刚 刚解放的西南山城云岭市，发行第一套人 民币，建立人民银行。当时的云岭满目疮 痍，百姓人心浮动。我军团长秦国梁临危 受命，担任云岭市人民币工作队政委。行伍出身的秦国梁用军事斗争的方式，“粗暴”地进行经济建设，不仅与知识分子出身 的队长罗红绫意见不合，更是引起当地商 人、百姓的不满，再加上当地复杂的敌 情，人民币发行工作屡屡受阻。秦国梁及 时认识到经济斗争的重要性和特殊性，在与敌人周旋的同时，努力学习金融业务知 识，多次识破敌人的阴谋，保护了国家财 产。秦国梁在逆境中带领工作队，秉着“人民政权建设到哪里、人民币就要发行到哪 里”的坚定信念，与敌人展开决战，胜利完 成了在云岭的任务，为新中国实现“金流天 下”的目标做出了巨大的贡献。而他和罗红 绫在工作中建立起的深厚感情也结出了硕 果。
本剧讲述的是为爱投身影视圈的富家女乔安好和豪门私生子影帝兼CEO陆瑾年之间历经13年的曲折爱情故事。《国民老公》将以网剧的形式在腾讯视频播出，由领誉传媒和企鹅影视联合出品，企鹅影视是腾讯旗下公司，为腾讯视频打造多部精品网剧，包括《如果蜗牛有爱情》、《鬼吹灯之精古绝城》等，制作、发行经验丰富，成绩斐然。目前原著小说尚未完结，电视剧版将分为三季制作，每季30集，单集30分钟，第一季将于今年6月在上海开机。
至于，她夫君的师父，身份再高，能高过玉帝？就在六公主不知所措的时候，周青和哪吒走进来了。
一个绝望的家庭用尽了一切办法来挽救他们病入膏肓的孩子。,只有一个除外。他们以文物历史学家/冒险家(凯恩)的形式寻求帮助，寻找“佛牙”，一种被认为具有超自然治疗能力的文物。然而，为了到达“佛牙”，凯恩不仅要周游世界，还要与武士看门人进行较量，他们每个人都掌握着有关这个古代遗迹位置的线索。
她心下暗叹，干啥要亲上做亲哩？若论亲，谁还能亲过娃儿姑姑家？小葱红椒她们不就是最好的儿媳妇，可是菊花都没这意思，还说姑表兄妹就跟亲兄妹一样，太亲了，不好结亲的。
The 10,000-hour law is helpful, but it still requires perseverance and many cycles of practice. (The 10000 hour rule helps. But to be achived, it needs persistence and passing through a lot of cycles.)
影片为黄磊执导的电影处女作，由制作过《卧虎藏龙》、《英雄》和《色戒》的江志强监制，日本国宝级导演山田洋次担任监修，翻拍其口碑之作《家族之苦》，讲述一个普通大家庭的温馨搞笑故事。
美丽善良的晨曦婚后获知自己因先天子宫畸形无法生育，婆家的偏见和对丈夫的愧疚让她主动放弃了婚姻。离异后晨曦没有再婚，而是收养了三个女儿唐果儿、方小菲、张天爱。虽然姓氏不同，母女之间的亲情更胜血脉。二十年后，唐果儿婚礼前夕，身患绝症的生母唐美珍出现，希望果儿原谅自己曾经犯的错，晨曦苦心促成母女相认，让果儿陪伴生母度过生命最后的时光。方小菲未婚夫的父亲竟然是晨曦20年来始终无法忘记的前夫吴东，为了小菲的幸福，晨曦选择彻底释怀过去。经历了太多人生的坎坷风雨，爱情终于眷顾了晨曦，然而这个叫张大哲的男人竟然是三女儿天爱的生父。得知真相的天爱无法接受大哲，大哲最终赢得晨曦的心，成为晨曦的第五任丈夫。面对不幸的人生，晨曦没有退缩，反而拾起了别人的不幸，努力绽放出属于自己的美丽幸福之花。
The traditional way:
