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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.So, what are the uses of today's medicinal tea?《杨澜访谈录》是“阳光传媒集团”旗下的一档名牌访谈节目，由著名节目主持人杨澜创办并亲自主持。节目定位锐意求新，突出人文和国际化特色。节目就政治、经济、社会、文化等不同方面的热门话题，与世界各地的知名人士进行广泛探讨，关注人的性格特征和独到见解，以历史的深度和广度，表现个体与社会的相互作用，寻找人类智慧的光芒，折射出特有的历史瞬间和社会背景。畅谈的话题不仅紧紧围绕时事或专业，更以人的经历、感受和智慧为中心，抽丝剥茧地讲述人的故事，以成败得失、人生百味体现人的智慧和感悟，让更多观众通过节目去感受那些平常可望而不可及的世界名人，拉近距离，沟通彼此。杰克船长又回来了，这次，他遇到了更为强大的敌人，传说中的不死人大卫·琼斯，他驾驶着让人恐惧的“飞行荷兰人”号快船，在速度与装备上，没有任何船能够超越它。杰克船长欠下琼斯一个血债，他必须赶在最后时限到来之前，找到破解的方法，否则他会永远背负血债，余生永远成为琼斯的奴隶。刘邦突然之间有些后悔，或许在淮水之畔的时候，就该孤注一掷南下，与越国争夺淮南。The function prototype for the QDateTime:: toString () function is:1990年代初。为追求新生活，山村姑娘扣儿（赵明明 饰）告别青梅竹马的男友田牛（纪原 饰）来到他乡，结识开有一家小旅馆的赵鬼（张山 饰），后者给了她诸多生活上的帮助。田牛不甘被扣儿小瞧，立志创业，几番辛苦终于得到酿制樱桃酒的秘方，成功借此成为知名企业家，并改名田家兴。扣儿带赵鬼回 到家乡，不把赵鬼放在眼里的田家兴以为一定能把扣儿娶到手传宗接代，但见识过外面世界的扣儿并不愿做一心为男人而活的传统女人。