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Reference: Baidu Encyclopedia-Application Double OpeningA 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.还有一点便是初次与刘邦合作，圆满成功。　　他赤條條去，他赤條條來，心裏到底糊塗還是明白。《圆圆的故事》是一部以情景喜剧《我爱我家》中贾圆圆为主线的新型社区生活喜剧，讲述了关凌扮演的贾圆圆已经长大，大学毕业后来到了小时候居住的社区（已经改名为幸福里社区），踌躇满志的她工作步入正轨后才深切体味到社区工作带来的挑战。Address: Room 2117, Yingjia Building, 369 Zhongshan South Road, Nanjing (Gate 3, Sanshan Street, Metro Line 1, diagonally opposite the Provincial Communications Department)恋爱、工作、友情…每个29岁的单身女性，都得面临这些波澜万丈、汹涌而来的问题！不但在职场被当成欧巴桑、好男人也被年轻女孩抢光光，甚至全世界的人都问妳为什么还不结婚！了…惨遭打击的山口智子心中暗暗发誓，「等我30岁生日的时候，一定要成为全世界最幸福的女人！」但是，不再孤独的夜晚，究竟何时才能降临呢？