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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.The lights specified in the terms of these Rules shall have the luminous intensity specified in Section 8 of Appendix I to these Rules so as to be visible at the following minimum distances:斯蒂芬·阿梅尔(《绿箭侠》)将主演Starz8集新剧《卑鄙小人》(Heels,暂译)。迈克尔·沃尔卓恩操刀剧本,迈克·奥麦利(《无耻之徒》)担任剧集运作。剧集围绕美国小镇里追逐摔跤梦的男男女女展开。故事讲述在乔治亚州的一个家庭运营的摔跤俱乐部中,两兄弟与对手一同争夺他们已故父亲留下的财产。阿梅尔饰演的角色在这个俱乐部算是卑鄙小人,但在现实生活中,他却是勤勉的老板,丈夫与父亲。他尽一切可能将俱乐部运营得更好。好在尹旭欣然接受了，从而在这关键的时刻获得了至关重要的支持。《完美暗恋》是广东卫视打造的一档情感类真人秀节目。该节目打破传统相亲中“以貌取人”的弊端，让男女嘉宾通过“听其声、听其言”去认识一个人。相亲男女要共同住在远离城市喧嚣的一座别墅里，朝夕相处4天时间。男女们相处的过程都见不到对方的面容。男女嘉宾在一间伸手不见五指的暗室里相处，并互相了解。在了解完一个人的内心之后，再让他们相见。　　而商海棠的初恋情人马静安更遭遇了家破人亡的惨痛，在恋人和亲人相继离去的双重打击之下，他落草为寇，靠着过人的智慧和毒辣，成为独霸一方的匪首，一心不择手段想搞垮鲍家，使商海棠重回自己怀抱……那是个武林的黑暗年代，自从李寻欢等大侠相继引退，正道后继无人，江湖被五大邪派势力肆虐。吕南人因争夺不秘绝艺飘香一剑，被同门出卖，几乎殒命，幸得神秘高手老李救起，带回了正道的藏身之所聚贤山庄。老李看出吕南人良知未灭，栽培其成为新一代正派领导钟静之左右手，却因曾经行恶而得不到少庄主孙敏的信任。吕南人本仍心系邪道，因跟孙敏等相处日久，渐渐被其感化，行事手法开始改邪归正。而另一方面，天争教教主得知吕南人下落，千方百计诱导吕南人成为自己的棋子，欲一举消灭聚贤山庄。吕南人本想置身事外，却因难舍跟孙敏与老李之情，毅然出手。