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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.一个“野种”女人,一个继承了母亲的姣美、善良、刚毅和养父的豪爽、果敢、豁达的女人,一个被塞北高原赋予鲜明爱憎的女人与世无争却多灾多难。蛮荒、战乱、土匪、日本鬼子、国民党、共产党和她那出息各异的儿女们构成了她快活、潇洒、壮美又充满了艰难、痛苦、辛酸的一生。生产商是Shincy Lu和Steak House；执行制片人是朱莉·安·克罗米特、马辛易卜拉欣、艾莉莎·纳瓦罗、克里斯·卡拉巴洛、杰森·阿尔维德雷斯、亚当·努西诺、杰西卡·德性和雷切尔·杨。CW的《吸血鬼日记 The Vampire Diaries》及《吸血鬼始祖 The Originals》共同衍生剧《吸血鬼后裔 Legacies》背景设置在Salvatore学校里，17岁的Hope Mikaelson（Danielle Rose Russell饰，狼人﹑吸血鬼 ﹑女巫三重混血种）﹑Alaric Saltzman的双胞胎Lizzie﹑Josie，及其他拥有超自然血统的的年青人在此既可能建立起自我，亦可能被冲动所蒙蔽。所以他们究竟会成为英雄，还是如血统本质下成为反派？而他们的行为都在校长Alaric Saltzman（Matthew Davis饰）的监督之下。同时，杨长帆发现印度洋的葡萄牙舰队已经驶入马六甲，大型战舰共计50余艘，中小型战舰上百，如果再算上那些有武装的商船，葡萄牙在东南亚已经集结了两百余艘可以作战的舰船。能够修改他人记忆的「PET」们自身凭借自己的记忆建立起的超越家人的信赖关系，很多时候记忆是会骗人的甚至是自欺欺人，我们自己也会不经意间修正不喜欢的记忆，至少让自己觉得这些记忆好看一些。张郑两家四个老人听了，笑得合不拢嘴。