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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.否则这个世上刑罚律法还有什么存在的价值？徐建心中一震，心中已经知晓，越王尹旭现在的愤怒可不是一点点，要是一直这样下去，对徐家的愤怒丝毫不减少，是非常可怕的。屋里又安静下来。小北、昌平、刘壮、云宝四个从电影学院毕业的同学，为了追求电影梦想，实现人生价值，他们经历了很多现实生活的考验，在爱情、亲情、友情与梦想的多种矛盾交织下，他们一步步获得心灵的成长，并渐渐走向梦想的方向。这是一个借爱情说战争的戏，是红色名篇的重新演绎与延伸。卢秋影，一个养在深闺的大家小姐，偏偏选择东渡日本学医，从而结下一段缘。“九•一八”爆发归国，一缕情丝却久居心头挥别不去。玉旨一郎，一个满腹汉学的日本关西贵族，远涉重洋来到伪满统治下的哈尔滨，只为再续一段情捧回一颗心。王一民，一个白天诗书，夜晚行动的特工，文武双全，智谋与胆略并存，这是一个前所未有的共产党员形象。而他，也是一个悲情英雄。是身份，注定他不能有爱情。即使他面对卢秋影，面对深爱他的关静娴，他只能是躲避、是淡漠、是冷酷。TVN<第三医院>是一部以中西医为背景的医院中中医和西医对决的故事.虽然治病的方法不同但是通过中医和西医医生对救人的热情为观众们带来了感动感.