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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, The O-ring 10 is further arranged at 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, 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, and the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity.Article 8 [Performance of Supervision Agreements] The medical security administrative department of the people's government at or above the county level shall supervise the signing and performance of designated service agreements between agencies and designated medical institutions, and supervise the inspection and examination of designated medical institutions by agencies.小葱……喃喃低语中，不知今夕是何年，更不知是何日。　　在中华人民共和国严厉打击刑事犯罪分子的震慑下，许多埋藏较深的沉案暴露出来。为增强破案力度，公安部成立了十几个特别案件侦破组，分赴大江南北、长城内外，专攻大案、要案和重案。　　大女儿丽良后来托人在黑河等地打听生母消息，都未有消息，葛莉儿成了一个永远的谜。大实业家的外孙女叶蓉然钦慕高志航，二人暗生情愫。上海淞沪战事爆发，国军十九路军等奋勇抵抗来犯日军，高志航的飞鹰航空队奉命升空，迎战日机。若是越国诚心对荥阳动兵，汉国又能坚持多久呢？一旦荥阳陷落，中原之地一马平川，无险可守，接下来可就是大梁了。在地球上存在着一个人类所不知的地下世界——印内世界，那里有驾驶着巨大蜘蛛进行战斗的正义勇者蜘蛛骑士！少年亨特·斯蒂尔依据祖父的日记去冒险，不料在一个金字塔中被传送到印内世界。在那里，图谋征服印内世界的昆虫军团因塞克特，和与他们相对的蜘蛛骑士正展开这激烈的战斗。印内世界的精灵预感到亨特·斯蒂尔是救世主，而引导他来到印内世界，可是精灵的力量被印内世界的支配着封印了，必须找到4个被封印的钥匙才能恢复精灵的力量。亨特·斯蒂尔和他的朋友怎样才能拯救印内世界呢，故事由此展开。