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A packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, the O-ring 10 is further arranged on the upper part 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, and the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41. The arcuate end face 12 forms a line seal between the sealing surface of the valve body 1 and the valve seat 7. The water grain 41 can ensure the sealing performance of the valve seat 7 and the valve disc 4.Public User getUser1 () {为了争取恋爱游戏的策划职位，邢运走上了 相亲之路体验真爱feel，没想还真撞上了优质男楚楠（黄继栋 饰）这个“蓝buff”，最终技能满点成功争取到了目标职位。本以为开始“行大运”的邢运却开始频频“踩大坑”，谁也没想到楚楠和夏柯的姐姐沈清（刘若嫣 饰）有着一段“虐恋”。深受其扰的邢运一心投入到策划工作中，并结识了夏柯的好哥们何遇（翟子路 饰），单纯的邢运吸引了何遇的注意，这位“芳心收割机”对其展开了猛烈的追求。与此同时夏柯也逐渐发现了自己对邢运的感情，但一直暗恋夏柯的“潇洒小姐”姚晴（陈昊蓝 饰）却也成为阻碍夏柯邢运的“绊脚石”。　　《极乐堡垒》中，莫娜汉饰演的玛吉是一位战功卓著的美军医务兵，同时也是一位单身母亲。她在阿富汗服役15个月后归来，却发现五岁的儿子几乎不认识自己，反而与前夫和他的新女友更加亲近。 　　就在她接回儿子，慢慢重新建立起亲情的纽带，逐渐适应战地之外的日常生活，还与一位机械师发生浪漫恋情的时候，战事又起，她不顾众人反对，毅然决定重新应征入伍，回归战场。The policy mode is the packaging of the algorithm, which separates the responsibility of using the algorithm from the algorithm itself and delegates it to different objects. Policy patterns usually wrap a series of algorithms into a series of policy classes. To encapsulate the policy pattern in one sentence is to "encapsulate each algorithm into a different policy class so that they can be interchanged". The following is the structure diagram of the policy mode:　　出院之后的陈扬四处寻找工作,终于在海情广告公司谋到一个业务员的工作。这是拉姆和卢克楚普的故事。拉姆是建筑学三年级的学生。他长得很帅，很有钱，是大学里很受欢迎的人。但他是个挑食的人，你能轻易买到的食物并不能满足他的味蕾。卢克舒普是一个可爱的大三学生，有着胖乎乎的脸颊，研究食物和营养。他暗恋拉姆，却没有勇气表白。幸运的是，有一天命运将他们聚集在一起，以食物和泰国甜点为纽带。