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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, A valve seat 7 is arranged between the valve disc 4 and the guide sleeve 6, a packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, an O-ring 10 is further arranged on 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, and the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41.啊哈……啊哈……两个人默契地找到了同一个终止点，然后再次无言对视。Var oEvent=ev event;该剧根据潘小楼原著小说《女孩们在那年夏天干了什么》改编，由豆瓣阅读授权。讲述了五个女孩在一场“特别的安排中”走进密室，15年前那个夏天发生在校园中的青春悬疑往事慢慢浮现。一个女生因为美丽陷入流言，少女们的性萌芽与人性原始的复杂善恶形成了真实与虚幻交织的故事。1937年的北平，狼烟骤起，日军铁蹄踏足中原。“七七事变”爆发，驻守宛平的29军将士英勇的抵抗。浩浩荡荡的北平市民、学生组织游行，声援29军抗战。学生们激昂的口号声中，文三儿脑袋一热捐出了一块钱，那可是他一个月工钱的一半。其实《笑傲江湖》还是有很多可以挖掘的地方。