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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.在没有接触并且了解一件事情前，别人看法是很重要的，三人可成虎，众口能铄金。尽管尹旭有伤在身，可如此重大的事情自然不能有丝毫的懈怠，必须尽快有个策略出来。故事背景为二十世纪八十年代初的美国硅谷，其时个人电脑正处于萌芽阶段，IBM公司刚刚推出旗下第一款主打产品并垄断市场。故事主人公为乔·麦克米伦（李·佩斯 饰），一个富有远见且极具野心和胆识的IBM前高官，离开老东家后他神秘失踪一年，现任职于“卡迪夫电子公司”。乔一心想要设计出革命性科技产品，与老东家抗衡，他召集了高登·科拉克（斯科特·麦克纳里 饰）——因产品失败而一蹶不振、得不到妻子支持的天才工程师，还有卡梅伦·霍威（麦肯兹·戴维斯 饰）——曾与乔发生过一夜情的科技奇才。乔运用强硬手段，迫使现任老板不得不加入这场野心勃勃、竞争激烈的科技革命洪流。17岁的高中女生夏叶舞暑假期间在东京的一个打击练习场做兼职，一位47岁的神秘前职棒选手的男子说：「只要看挥棒就能告诉对方该有什么烦脑」他用“棒球理论”的独特比喻“人生论”来引导每次出现在练习场的女性们解决烦恼的方向。But in that case, Not even considering so many dangers, This performance of '74 spray' is of great use, I remember there were 4 '74 spray' on the position at that time, There are two recruits who operate them. Two veterans, Both veterans were squad leaders, All have the skills of air injection, Facing the big wasp descending from the pavement, The two of them were obviously forced to hurry, Take up the '74 spray' and aim at the position where the big wasp is relatively concentrated in the sky and spray it out. If it weren't for the critical situation at that time, the two squad leaders would definitely not have this kind of "dangerous operation", while the other two recruits watched the veterans take the lead and learned to do so. Although they had not received relevant training and the accuracy of spraying was not as good as that of veterans, they finally sprayed out and did not hurt themselves or other comrades in arms.　　当他苏醒过来，才发现自己已被一群猿人团团包围，并被带往丛林更深处的猿人部落，与其它人类关在一起，里欧才惊觉这是个由猿人统治的星球，而人类已沦为次等种，打破人类一向自以为是宇宙中心的想法……