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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, An O-ring 10 is further dispose at that upper portion of the packing assembly 9, An upper part of that O-ring 10 is provide 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, the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity, the two O-rings 10 are concentric arranged, and the inner diameter and outer diameter of the two O-rings are different.嗯……徐文长思索过后，下定决心说道，在去之前，我先要告诉你，现在已是死局。舍不得孩子套不住狼，火中取栗虽然危险，但回报却是惊人了，当所以人以为他不会这么做的时候，刘邦偏偏反其道而行没有可能吗？但陈平并不这么认为，对于这个所指代的原住民而言，传国玉玺只是秦王国玺而已，拥有它的**意义确实不小。民国时期的上海，一起脸谱连环杀人案引发城市的混乱，私家侦探陈一鸣卷入其中调查，并因此结识巡捕局长之子张天笑和海归美女姚菲，三人组成侦探团破获此案，陈一鸣却发现案件背后似乎还隐藏着更神秘的阴谋。在三人协作破获诸多案件的过程中，彼此之间的情谊逐渐加深。在揭开一个个真相的同时，陈一鸣的身世谜团也逐渐浮出水面。在收到神秘匿名信后，陈一鸣等人前去“日落别墅”参加晚宴，不料却因此陷入一场杀戮之中。陈一鸣与罪犯不断斗智斗勇，却惊觉真正的幕后黑手早已伪装在自己身边，为报弑父之仇酝酿着复仇计划。在愤怒、背叛、谎言的多重裹挟中，深藏其中的真相终将现世……導演王小棣首部開拍作品「荼蘼」，找來楊丞琳擔任女主角，該劇是編劇徐譽庭最新作品，導演則是由王小棣親自上陣。這回首次合作，楊丞琳超興奮，想好好過足戲癮。Attack Basis 913去机场接朋友思缤的英珠，与从美国进修回来的小学同学——潇洒幽默、极俱才能的承振邂逅相遇，当承振想起小时候暗恋英珠的情景，暗地勾起了他对儿时美好回忆。此时，英珠已有了相处八年、本性善良的恋人——广播制作人东锡；承振也有一位外貌迷人、性格奔放的女友——美大毕业的摄影师美艳。而英珠、美艳、思缤恰恰是学生时代最要好的同窗。性格温和的东锡，由于受英珠的推托和母亲的阻挠，迟迟未能与英珠达成婚约。承振忆起小时残存的美好片断及父母离异带来的痛苦，觉得只有英珠考勤能唤回他美好的一切，于是……