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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.故事讲述英国裁缝 伦纳德（马克·里朗斯 饰）曾在世界闻名的伦敦萨维尔街做西服，但在经历了一场个人悲剧后，他来到了芝加哥，在镇上一个简陋的地方经营着一家小裁缝店，为周围唯一能负担得起的人制作漂亮衣服：一个邪恶的黑帮家庭。秦公公、崔丞相偷读皇上如有不虞时的遗詔，竟指名要皇上宠幸的爱妃郑贵妃、苗贵妃、及近臣秦公公、崔丞相、刘大学士与张校尉陪葬，刘大学士与张校尉皆為文武忠臣，自然愿意慷慨随伴皇上共赴黄泉。但贪生怕死的皇后，与一直恋栈权位的大太监秦公公、大贪官崔丞相哪肯陪葬，叁人商量出一个权宜之计，就是到民间找一个长相跟皇上相似的人进宫，假扮皇上。此举一来他们可免除陪葬厄运\，二来又可「挟天子以令诸侯」，控制假皇帝！韩信续道：齐国战败几成必然，我们事实上的一个盟友就要完蛋了，我们要是单独对抗楚国，局面将会很不利。我问你，周爷爷是一个人住在这呢，还是跟儿子一块住？儿子？黄豆停住脚步，周爷爷没有儿子，他老人家一直跟侄儿住。京剧名旦余佩秋在丈夫楚伯平被抓去台湾后，诞下一女，由于担心女儿楚楚的出身，她让结拜姐妹王彩凤冒名顶替收养了楚楚。由于对余佩秋的猜忌与歧视，京剧团团长路明在将楚楚偷偷带到城里医院验血时，将楚楚丢失。赵乔一和言默是高中同桌，一个是迷糊努力的偏科生，一个是外冷内热的大学神，看似不对路的两人却情愫暗生。毕业前夕，言默表露心迹并请乔一与他出国读书，乔一因家庭变故冷淡拒绝，二人陷入异国冷战，但对对方的思念却与日俱增。