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.
In a tcp connection, Rst means reset, which is used to close the connection in case of abnormality. When the sending end sends rst message to close the connection again, it does not need to wait for all the datagrams in the buffer to be sent out, but will directly discard the data in the buffer and send rst message. Similarly, after receiving the rst message, the receiving end will empty the buffer and close the connection, and does not need to send ack message for confirmation.
5. A tugboat or the last of several tugboats, if equipped with a crew, shall make four consecutive sounds at intervals of not more than 2 minutes at a time, i.e. One long sound followed by three short sounds. When feasible, such sound shall be sounded immediately after the tugboat sounded the sound.
为救人，不求回报，不惜名声受损，不惜自身性命。
西楚国既然出兵了就必须要开战，不能这样平白无故地作罢。
十年前品学兼优自带男神光环的路非，与倔强叛逆的任性少女辛辰相遇。这样气场迥异的两人，却在一场意外中萌生了情愫，然而岁月欺人，两人最终走散。
讲述2015年那场震惊世界的巴黎恐袭的纪录片。从国家领导人，到消防员，到幸存者、目击证人，各个经历者平静而真实地讲述那一晚发生的事。
Thank you: chenssy Bobby0322 and other bloggers in the blog park have benefited a lot from your blog. Thank you.
钱明万没料到
12年9月90日（星期四）
老三曾是名军人，两次偶发事件却改变了他的人生，一次意外脑部受伤，使老三的思维变得与年龄不相符的天真和乐观而提前退役；一次见义勇为受到表扬，使老三发现了自己生活中最大的快乐就是击倒坏人的一刻，于是，老三决定用他的拳头改变世界。 荣哥是名非法古董商，沉稳老练心思缜密的他冲着稀世文物岳家枪而来，并势在必夺的执行着抢夺计划，荣哥认定没人挡的住他，因为他认为世界可以被自己的智慧改变。 两个都想要改...
……八点多钟，好人陈启从家里动身。
At that tail of the warhead, the drag armour-piercing firebomb is filled with a drag agent and a fireagent, Under the pressure of propellant propelling warhead, it will spontaneously ignite to produce open flame, So it can break through the oil drum and ignite or detonate the gasoline. However, the old-fashioned traced armour-piercing firebombs have obvious trajectories due to traced light when they are launched. Therefore, it is very easy to expose oneself while pointing targets to friendly forces. Therefore, the new tracer armour-piercing firebombs now equipped all start to burn and emit light only after the projectile flies out of the muzzle for a certain distance (the generally set safe distance is 100 meters, which makes it impossible for the enemy to judge the firing position with tracer ammunition, while targets within 100 meters do not need to be indicated by tracer), The principle is generally to ignite the tracer and combustion agent carried by the projectile by accumulating the heat generated by the warhead's friction with the air after flying for a certain distance to a certain extent.
杨长帆却一声长叹，扔掉了手中的燧发铳，只短促说道：你死了，谁来打鞑子？戚继光依然没有迟疑：江山代有人才出。
该剧讲述了一位干练律师在被告知患上了早发型阿尔茨海默症后，赌上自己的人生奋勇迎战，直到最后一刻都想要维护自己的尊严的故事。
请问您有什么需要？陈启走进电脑城，就有人上前说道。
板栗挥手免礼，来到小葱跟前问道：怎么回事？另一边，英武帝眼光在刘井儿和红椒身上打了个转，便移向玄武王。
这次卡莱的船队入港后没有直接与船主的人交易，而是寻找往来大陆的民间船只，企图绕过杨船主直接交易。
“在美国的最北边巴罗小镇，北极圈以北，530公里北冰洋岸边，在那的大街上都可以看到北极熊，每年的5.11到8.1这83天里，太阳都不会落到地平线下面。那里的午夜都有阳光……”
