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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.第三夜由柴崎幸、室刚与高桥一生出演，森下佳子担任编剧，描述如果因为自我隔离而关在家里的话，就会产生“好想见到那个人啊”的心情，于是不知为何，和想见面的人灵魂互换的稀奇事情发生了，更厉害的是三人互换的故事。In 1988, the 24th Olympic Games began to set up women's events.For the institutional media, the content reward is as high as 100,000 yuan, and millions of dollars are issued at once. Such efforts are rare in recent years (in 2017, a chicken soup article in We Media's large visual journal was flashed on the screen, and a small editor was awarded 100,000 cash and an iPhone X).国家地理频道电视电影（四小时迷你剧）《圣徒与陌生人》（Saints & Strangers）描述了美国的起源——1620年，35名追求宗教自由的英国宗教分裂分子（分离派清教徒）与14名契约奴隶、53名工匠 、渔民、贫苦农民、冒险客、罪犯坐上五月花号（Mayflower），从普文斯敦港启程前往北美大陆。经过66天的艰难航行，他们抵达了目的地。看到「新世界」（New World）的那一刻，五月花号上的所有人都如释重负。分离派清教徒相信他们在「新世界」能自由表达宗教信仰，并以此为基础创建新的社会秩序。但对这些刚刚闯过疾病、极恶与死亡挑战的旅行者来说，他们的旅程才刚刚开始——文化差异、气候问题、与土著居民的矛盾冲突、对信仰和意识形态的质疑，时时刻刻都在考验着他们的毅力和决心。但他们最终克服一切挑战建立起北美地区第一块殖民地，这就是日后人们所知的「美国」。