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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.　　她是华夏圣手君九，医毒双绝。一朝穿越，却成了人人可以羞辱的废物小姐。废物？虐渣打脸她样样拿手！神品丹药随手炼，坐拥神兽，迎娶邪帝！到底谁才是那个废物？一名法医在案件侦破中努力确定自己的角色。跟他们有什么可应酬的。职场狂人郑闵唯和情感咨询师安苒，这两个年轻人，一个闷骚，一个自卑，两人从雇主关系，到相识相爱、彼此治愈，探讨了现代社会发展进程中，年轻人对于爱情与婚姻的恐惧心理、晚婚晚育、亲子关系的裂痕修补等现实问题，对彼此的人生创伤互相宽慰与疗愈。* * Species a mixture of 2-5 species, usually used as medicine in plants, brewed with hot water. The medicine part should be dry before brewing. Of course, you can only make one (such as peppermint leaves), but this is not called Species.由野外生存专家吴英雄（李宁饰演）和科研所负责人周芳蕊（王婉中饰演）带领一支装备精良的国际救援队，前往神秘漂流岛—“幽灵岛”营救遇险科考队的故事。历险途中，他们不仅惊讶地发现远古植物丛生，甚至遭遇各种凶猛异常的骇人生物袭击，孤岛救援之路危机重重。