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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.本以为汉军出巴蜀在短时间是不可能的事情，甚至没有一丝一毫的希望。The address of each function in the target program libc can be obtained by leaking memory, which can bypass the address randomization protection.阿维纳什（杜奎尔·萨尔曼饰）是个典型的城市白领，过着忙碌、平淡和压抑的生活，有一天突然接到旅游公司的电话，告知他的父亲在车祸中丧生，让他去机场接收遗体。接着他找来“碎嘴”的朋友肖卡特（伊尔凡·汗饰）开车，接回遗体后准备火化，这时意外发现棺椁中竟然是一位老妇人，原来是货运公司发错了货，他们不得不赶赴逝者亲属家去交换遗体，途中又临时去大学接回逝者的外孙女——处于青春叛逆期的坦娅（米蒂拉·帕卡尔饰）。于是，三人踏上了笑料频出的远方旅程，在欢乐、悲伤、争吵、热恋的过程中，三人都在潜移默化中改变着自己，领悟着人生真谛。Friendship Link: Detailed Explanation of Ubuntu Installing JDKAttached: List of winners of the Chairman's Special Award for the First Phase of Interface News (this list does not include the winners of Blue Whale and Financial Association)故事发生在20世纪60年代的韩国，居住在某个乡村的贫穷青年许三观（河正宇 饰）喜欢上了同村最美丽的姑娘许玉兰（河智苑 饰）。传闻玉兰是小混混何小勇的女朋友，但是三观凭借锲而不舍的精神和憨皮赖脸的劲头说服了未来的老丈人，如愿抱得美人归。婚后数年，夫妻二人先后育有一乐、二乐、三乐三个机灵调皮的儿子，一家人的生活也有滋有味。但是一乐越来越像何小勇，引来村里人议论纷纷，这让许三观坐立不安，而他对玉兰、一乐的感情似乎也由此发生了变化。在那个卖血成风的年代，三观曾经用自己的血换来了钱。令他想不到的是，在接下来的人生里，他将不得不为了家人们一次次卖血，苍白羸弱，命在旦夕…… 
　　本片根据余华的小说《许三观卖血记》改编。