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他头一次在板栗面前摆长兄的威严，如同教训黄豆一般，口气严厉。The skill of collapsing dragon legs is very exotic. The author is an action mode, so it is difficult to aim at this skill when used. Let's divide it into people.Phase I: generating interest//228周菡静静地等待了一会，出声问道：山长爷爷可是觉得，晚辈此举很可笑，书院不能收女子？周夫子摇头道：不，老朽做主，允你上山听讲。是相信重要的朋友，还是背叛重要的朋友。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, A packing assembly 9 is arranged between the valve stem 3 and the valve cover 2, 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 which 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, the packing assembly 9 comprises a flexible graphite packing layer.