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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, 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.在这部纪录片中, 切尔茜·汉德勒探究了白人特权如何影响美国文化，而她的生活和职业生涯又是如何因此而受益的。若不是两年前赵耘送去两个婆子照应，这两人怕是就要把命丢在黑莽原了。　　就这样，安迪苍白的生命里突然多出了一个活蹦乱跳古灵精怪的孩子，不仅如此，他还对艾罗尔学校的美丽女教师一见钟情。完全不懂得如何管教孩子的安迪和人小鬼大的艾罗尔，这样一对“奇葩”的组合之间会擦出怎样的火花呢？由上海SMG尚世影业和上海蓝星影视联合摄制的大型女性情感史诗巨制《风和日丽》男女主角历时半年多的层层筛选，终于尘埃落定。女主角杨小翼由在《奋斗》和《婚姻保卫战》中名声大噪的青年演员马伊琍出演，男主角刘世军由在《士兵突击》和电影《唐山大地震》中脱颖而出的新生代偶像小生李晨担当。 　　《风和日丽》作为今年上海市委宣传部重大文艺创作项目之一，将在今年六月投入拍摄，该剧由金牌编剧林和平、泳群操刀、著名导演杨文军执导。该剧将横跨上海、北京、浙江三地拍摄，投资巨大，卡司空前，力求打造一出制作精良、故事感人的精品佳作。又有跟随人手安排等等，都交代妥了，明日卯正三刻启程。