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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.这些天，推荐票、收藏、打赏一直在唰唰地涨着，很多书友虽然没有发言，但是却一直在背后默默支持，月下铭感于心。好一会，他抬起眼皮正要说话，见下跪之人眼光闪烁，便沉声问道：赵培土，尔有话要说？顿了一下，板脸道：若是想要据此为张子易求情，就不用开口了。《家风》讲述从50年代初就在一起共过事的省人大常务副主任杨正民与水务厅长牛志浩二人成了亲家。杨正民心胸开阔，为人厚道；牛志浩为人诚实，但心胸狭隘。牛、杨二人的思想境界随着改革开放的深入发展渐渐拉开了距离，在关于子女未来发展的一系列问题上，二人持完全不同的态度。二人离休以后，杨正民当了扶贫协会的会长，牛志浩下海经商。在牛志浩被合作方欺骗出卖的关键时刻，杨正民拉了他一把，牛志浩终于原谅了杨正民，两人演出了一场新时代的“将相和”。当年要走仕途的杨正民被迫与初恋情人李来娣分手，这一直是杨的一块心病。当他得知某某乡的小学教师因重病没钱换肾危在旦夕，于是将卖出一幅收藏画所得的三万元捐给了李来娣。杨正民的老婆马桂梅发现少了一幅画，又发现了丈夫与另一个女人有瓜葛的蛛丝马迹，多年恩爱的夫妻之间发生了一系列的不愉快，他与妻子女儿之间出现了泪水与泪水的大碰撞……Prototype mode refers to specifying the type of object to be created by giving a prototype object, and then creating more objects of the same type by copying. The main points of its implementation include:山阳县县领导的家人被害，引起了巨大的社会震动。市委领导决定，将江泉市公安局刑侦副局长李斌良调任山阳县公安局代理局长。经过李斌良细致、缜密的调查，案情有了些眉目。一个“疯子”出现在了侦查视野，他既可能是案件的惟一目击者，同时又可能是一些重大事件的关系人。李斌良加强了对这个人的跟踪和监控，他抽丝剥茧，看穿了种种假象，破除了一个又一个的困扰。最终，李斌良抓获了犯罪分子，伸张了正义。Has the landlord summed up