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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, A valve seat 7 is arranged between the valve disc 4 and the guide sleeve 6, a packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, an 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.“万众创新，大众创业”这股电流刺激着城市僵化的脉搏，挑动着人们追求财富的神经，大大小小的产业孵化园纷纷拔地而起。富二代苏植南带着和父亲的约定离开了家族集团，打造了自己的众创空间，吸纳了大量创业界的散兵游勇。从未经历过风浪的他遭遇了合同欺诈，从行业楷模坠落成负债八百万的loser，众创空间遭到了驱逐，曾经他所照拂的创业团队纷纷离他而去。最终留在他身边的，只剩下叶一凡、韩江雪、袁华、田萝和张可。为了不让自己的梦想轻易被扑灭，他们在一无所有的情况下仅凭各自的才能从创业食物链的底端一点点爬起来，重新夺回失去的众创空间，实现各自的目标。胡家前脚上门求亲，后脚全京城人都知道了，张家当然不高兴了。Twin babies are separated at birth. The girl grows up in a middle class environment, her brother in a street gang. Twelve years later, their paths cross again and they discover their common destiny, imposed upon them by the adults. It is the beginning of an exciting journey to the discovery of their roots and their independence, but neither of them is able to escape the past...你想想，我们押这么多银子，最后我又证实了我就是张家的玉米，那个银子……呵呵……陈老爷愣了一会，恍然大悟笑道：哈哈……聪明鬼和机灵鬼更是兴奋难耐。Computer closed!