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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.赵光头眯眼道：拿吕宋小试牛刀倒也可以，只是……咱们抢过劫，杀过人……还从没灭过国……这马尼拉咱们上岸一杀一烧，抓了皇帝砍了，此后怕是再无吕宋了吧？谈笑间，舰队逐渐逼近港口，五十战舰威压不小，八千军士也跃跃欲试，搞不好出海十几天就要来一场大仗了。I wrote down my point of view in the interview notebook, and Zhao Mingkai went on to say after reading my writing:　　五年后，这位定居巴塞罗那的作家依然炙手可热，他不得不让助手礼貌地回绝一堆盛情邀请，直到收到了一封来自距离布宜诺斯艾利斯车程七小时的家乡小镇萨拉斯的信。丹尼尔所有创作的灵感全部来自这片故土，但却已经四十年没有回乡——正像他自己所说的那样，他从未离开家乡，但也从未回归。颇让助手感到意外的是，他接受了小镇的邀请，踏上了前往接受“杰出公民”奖的旅途。人类的记忆很多但是高兴的记忆堆在山上，不愉快的记忆则是放在谷底，而正是在这山谷起伏之间一个人才能够得以存在。站票？售票的那个妹子顿时愣住了。2. Open "test1. Java" with Notepad or NotePad + + and enter the following code.