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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.《说谎的爱人》首度抛出“家庭成长史”的概念，并深度探讨了“现代婚恋信任危机”的话题，将一个感人至深的亲情故事娓娓道来，在“家庭情感”的主线下，描绘了现代婚恋关系中充斥的各种无奈谎言。又默默与沈悯芮道：好了。小镇上声名狼藉的脱衣舞俱乐部即将关门大吉，营业的最后一晚却变成血腥之夜！当一群遭受致命感染的顾客现身闹场，俱乐部老板娘和她的脱衣舞嚷们必须挺身而出，情况却逐渐一发不可收拾……《家有儿女新传》，讲述了同一个小区三个家庭中的三个小伙伴的成长故事。，让班长施兰兰头疼。他们还把初中生唐娜拉进他们的小团伙，连唐娜的好朋友——同住一个小区的“魔术师”姐姐林青青也时不时给他们出主意。 　　社区里有一个“家有儿女俱乐部”，学校的安远老师在俱乐部做志愿者辅导老师，他寓教于乐的教育方式最受孩子们的追捧，而这里既是孩子们的天堂，又是老师和家长交流教育经验的好地方，于是，许多奇妙的故事在“家有儿女俱乐部”里发生。