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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.赴职的李安在碧波湖畔被余县贪官授意的恶霸杀害，红鱼未能及时搭救，只能将他藏在碧波洞里，而自己为寻找真凶扮作李安为官，凭借智慧连破奸人诡计，震慑奸佞。　　本片根据被称为20世纪“世纪大案”的辛普森案改编。一直风雨交加的德式老楼里，国税城南分局的张局长死于非命，上千万增值税发票被盗。如此惊天大案牵出了一连串爱恨情仇、恩怨是非的往事。 满腔热情、海外归来的年轻税官项钧在分局税案发生后，受命于危难之际，为防止税金流失，项钧开始艰苦卓绝的调查。工作展开非常艰难，来自分局内部副局长侯生安的设计陷害和有涉黑背景冷彪的从中干扰，使项钧腹背受敌。然而，黑衣人的神秘出现更让整个事件扑朔迷离…作案嫌疑人是税务局内部的监守自盗，还是另有其人，张局长命殒谁手？增值税发票到底流向何处？这位年轻的税务局长将凭着智慧将一个个谜团层层拨开。作风硬朗、干练的项钧局长深深吸引了刚从税校毕业的青春、活泼的少女——肖潇，她是化工集团董事长肖海洋的女儿，两人看似天生一对，但另一女人的出现则又掀波澜，她正是项钧青梅竹马的昔日恋人——严雪。而严雪此时已是冷彪的妻子。面对如此错综复杂的情感，一边是年轻漂亮的董事长的女儿，一边是昔日的恋人，项钧该做怎样的抉择？ 而令项钧剪不断的还有与哥嫂的亲同父母之情。哥嫂从小供其读书，项钧视兄嫂如父母，刘邦知道，今夜要是没有张子房出谋划策，自己根本不可能这般平安无事离开。11. Change the competition for all employees to the competition for vacancies. It is advocated that as long as employees are capable and confident, the Company will provide employees with a platform to show themselves. For job vacancies, the Company will implement a targeted competition mechanism, which will be organized and led by the Administrative Personnel Department. The posts, applications, competition speeches, result statistics, appointment notices, etc. will be issued fairly and impartially to ensure the scientific nature of talent selection.老夏，我能问一下……林白兴冲冲的问道。