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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.陈奎讪讪一笑：大人，咸阳一并来的公文，前丞相李斯欺君谋逆，已腰斩于咸阳。Car=make _ car ('subaru', 'outback', color= 'blue', tow_package? = True)It was included in the Olympic Games in 1992.1936年12月，西安事变爆发，国共两党关系微妙。军校即将毕业的地下党冉华被同学宁鹏飞泄露身份，招致祸端。未婚妻石莉为救冉华家破人亡，无奈与冉华之弟冉国上山落草。抗战爆发，冉华与宁鹏飞尽释前嫌，联手抗日。在此期间，邓梅爱上冉华，但冉华始终思念石莉，不为所动。抗战胜利，冉华与宁鹏飞因立场不同再生间隙，宁鹏飞女友、冉华之妹冉辛在内战中牺牲。全国基本解放，冉华率领先锋团挺进川渝，解放大西南。宁鹏飞受命留在武陵山，抵御解放军。石莉和冉国受到宁鹏飞蛊惑，对解放军产生误解。宁鹏飞伏击先锋团，邓梅受伤牺牲。冉华误以为这一切是石莉所为，几人展开一段错综纠结的恩怨情仇。几经磨难，石莉与冉华尽释前嫌，联手击败宁鹏飞的势力。宁鹏飞不甘失败，暗中在重庆启动爆炸计划。关键时刻，冉华与石莉、冉国联手，摧毁宁鹏飞的计划。Looking back on this social practice, I have learned a lot, learned a lot of social experience from everyone I contact, and improved my potential, which I cannot learn in school. It takes long-term practice to be good at communicating with others in society. In the past, I did not have the opportunity to work, which made me unable to adapt to changes when talking with others and made the conversation silent. This was very embarrassing. People will integrate into the social group in the society, and people will work together to make the process of doing things more harmonious and get twice the result with half the effort. You should listen to the opinions given to you by others and understand them patiently and modestly. Be confident in your work. Confidence is not a numb boast, but an affirmation of one's potential. Lack of social experience, lack of academic qualifications and other reasons will make self-confidence lack. In fact, anyone who is born with confidence can overcome psychological barriers and everything will become easy to solve. The accumulation of knowledge is also very important. Knowledge is like human blood. Without blood, one's body will weaken, and without knowledge, one's mind will dry up. The brewing industry contacted this time is very strange to me. If I want to do a good job, I must understand this knowledge and have in-depth understanding of all aspects so as to better apply it to my work.郑氏见是个乖巧纯良的孩子，就对她微微一笑。