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Three implementation classes:A low temperature stop valve, Unlike Example 1, Comprises a valve body 1 and a valve cover 2, A valve stem 3 is arrange in that valve body 1, One end of the valve stem 3 is provided with a valve disc 4, The other end of the valve stem 3 is provided with an adjusting handwheel 5, A low portion of that disc 4 is provided with a guide sleeve 6, The guide sleeve 6 is fixed by means of a connecting piece and a spring pad 8, Between that disc 4 and the guide sleeve 6 is provide a valve seat 7, Between that valve stem 3 and the valve cov 2 there is provided a packing assembly 9, The O-ring 10 is further arranged at 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, the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41, the packing assembly 9 comprises a flexible graphite packing layer, and the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity.本剧由三个青春故事组成。《他和喵》：来自猫王国的猫咪江小葵和主人江晴过着幸福的生活。直到那一天，江晴的弟弟江夏归家，对猫过敏的江夏和讨厌弟弟的江小葵展开了一场关于姐姐宠爱的争夺战。《全日制对头》：暑期短跑集训上，积怨许久的许天一和李施林重逢。在互相比拼抗衡的过程中，解开了当年的心结。就在两人一起为进入市队努力的时候，一场意外发生了。《故事里的人》：小混混余昇意外发现自己竟然是作家许墨小说中的人物。得知自己和妹妹的悲惨结局之后，来到现实世界与作家斗智斗勇，企图改变自己的命运，...该剧讲述了特警“小虎队”从接受考核组队，到成长为可以在繁琐的案件中独当一面的“钢铁战队”的故事。After tympanic membrane perforation healed, it was qualified.Belgium: 13,700沈宇、顾晓薇，同时爱上了富具艺术才华的男生华韦林，但华韦林却因忽然遭遇家庭变故，被迫从美院辍学、失去了接受高等教育的机会，早早地走上了社会。华韦林坎坷的生活道路，一直牵动着这两个女人的心——沈宇锲而不舍，不顾父母的反对跟他结婚组织了家庭，日子过得再是艰苦也无怨无悔；为此顾晓薇关闭了感情的门，只身创业，却凭借着商业上的成功，默默地帮助着沈宇、华韦林这个来之不易的家庭，一年又一年，直到他们立稳根基，过上了小康生活。而顾晓薇的感情问题，也一直牵动着华韦林和沈宇的神经，他们费尽心思帮助顾晓薇寻找生命的另一半，终于精诚所至，叩开她冰封的心灵，让她学会了放手去爱，最终，帮助她找到了自己的幸福