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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.如果没有他，但是尹旭懂的这些东西，只要有个经验丰富的工匠一样是可以做到的，当然了可能难度和耗费的时间精力更多那么一点。细诊了一回脉，点头道：有些起色，比前两天好多了。　　在险象环生的斗智斗勇中，原本一心为财的马天明被革命者蔡里昆的高风亮节所打动，真正成长为一个深晓民族大义的共产党人，最终战胜了恶徒，完成了组织交予的任务，同时也为自己洗清了冤屈。南宋中叶，局势纷乱，郭、杨两家惨遭灭门，其后人各散东西。郭家后人郭靖（张智霖饰）为人正直坚毅，自小得江南七怪传授武艺，更先后习得洪七公（刘丹饰）之“降龙十八掌”及周伯通（黎耀祥饰）之“九阴真经”。靖结识了灵敏活泼的黄蓉（朱茵饰），二人展开了一段生死相许的爱情另方面，杨家后人杨康（罗嘉良饰）为金人完颜洪烈收养，贵为太子。康及后与靖相认，更查出烈为他俩的杀父仇人，惜康利欲薰心，竟认贼作父。为取得“九阴真经”及“武穆遗书”两本绝学，康与西毒欧阳锋联手对付靖，更杀死江南七怪及嫁祸东邪，欲借刀杀人。武林大会“华山论剑”举行在即，“九阴真经”成为各派争夺的目标，靖更是众矢之的，一场武林浩劫即将爆发！几十海贼，像是僵尸一样不急不慢，一步步踏浪而来，那眼神中毫无杀气，唯有平淡与无畏。11　二〇三高地