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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.(2) Each room should last about one second, each flash interval should be about one second, and the interval between front and rear signals should not be less than ten seconds;炼丹炉被踢翻之后，人间火烧八百里，原本单纯无知的红孩儿无意间成为受害者，不得不承受火焰灼烧之痛。其母为救他，带着他辗转各地，求医问药，红孩儿最终获得了三昧真火和焚天紫火的能力。在红孩儿得知自己遭受这一切痛苦的原因后，他决意报仇，与此同时，一场惊天的阴谋正在悄然策划，顽性不改的红孩儿站在了离魔道最近的地方……The default creation event is stored in the current library, and the specified library in which the event was created can also be displayed.　　经过战火洗礼，庄继宗、李占魁等人逐步由一名单纯复仇者，成长为为民族而战的传奇英雄。《暖阳》这个故事不仅是一个家庭孝道故事，更是一个正能量传递和延续。内容体现出孝心是一缕和煦的阳光，温暖和感染着身边的每一个人。孝道是棵种子，只要种从小下了这样一颗种子，就能让每一片心田四季常绿。当今社会需要这样种子发芽，更需要大量如暖阳正能量，还需要更多的善良和美好的传统美德来滋润我们每一个人。时光也许会改变一切，却改变不了人们心中那份如暖阳般善良和从小心田里种下的孝道种子。