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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, 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, the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity, and the two O-rings 10 are respectively arranged on the inner side and the outer side of the packing gland 11.出生在普通工人之家的向前，凭借自己的聪明才智和吃苦耐劳的精神，很快在全球知名的IPD基金公司任职并站稳脚跟。期间，他冲破层层障碍如愿以偿与寻找结婚生子。书香门第家庭出生的寻找不顾家人的反对嫁给了贫寒子弟向前，寻找一直从事自己喜爱的舞台艺术工作，婚后不得已放弃工作成为了全职主妇。由于向前工作应酬多，寻找对新生活的不适应，两人沟通不顺导致夫妻关系很快出现问题，更令人担忧的是寻找为此患上严重的抑郁症。两人在努力挽回婚姻无果后，决定分开。即使分开两人依旧把对方当做亲人，一起陪伴孩子成长，而他们的孩子好汉不仅没有受到伤害，还意外收获了两个重组家庭的双倍宠爱。田遥见国公夫人面如金纸，冲他嘶声喊道：你快替她诊治。We use this formula as the basis for calculation: attack power = weapon material power * (1 + power/250). Let's take physical attack as an example. Magic attack algorithm is the same: attack power = weapon magic attack * (1 + intelligence/250).Iptables-restore 全部简介