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3. Physical period: Uniform circular motion is a kind of periodic motion. The so-called periodicity refers to the fact that after a certain period of time, the moving object repeats back to its original position, and the instantaneous speed repeats back to its original size and direction. The time it takes for an object to move in a uniform circle is called a period. The period is expressed by the symbol T, and the period is also a physical quantity describing the speed of uniform circular motion. The long period indicates the slow motion of the object, while the short period indicates the fast motion of the object.天启说这部小说从玄铁重剑开始，你看，没有玄铁重剑哪来的屠龙刀、倚天剑？这部小说真的是从玄铁重剑开始。吃晌午饭？少年有些愣神。你为什么不笑？尹文倩道。蜀山派一直是江湖第一名门正派，一直领导武林多年。蜀山掌门诸葛驭我为保天下，对抗企图抢夺赤魂石的绿袍尊者，把赤魂石打入天赋秉异的丁隐体内，丁隐由此拜入蜀山门下修习剑法，誓要练成蜀山绝学，替天下百姓向绿袍尊者寻仇。偶然间，丁隐发现绿袍之女玉无心竟然与他逝去的爱妻长得一模一样，二人坠入情网。此时，蜀山剑派内部亦暗流涌动，一场武林浩劫即将来临。丁隐联合同门丹辰子、诸葛紫英、周青云及结拜兄弟小张，历经艰难险阻，不想却陷入更大的阴谋，令众人分崩离析。丁隐为救众生，牺牲自己，与敌绿袍尊者同归于尽；玉无心伤心欲绝，独自流浪天涯，完成丁隐心愿，造福众生。丹辰子独自留在了昆仑，接任蜀山剑掌门，江湖也等着蜀山派一众去合力行侠仗义，拯救天下苍生。3. Use lemon, grapefruit peel, etc. to effectively remove peculiar smell. Buy a lemon or have we eaten it? Pomelo peel, is it suitable to stop in the car? Location.