tornadoes英语原版

A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twisters or cyclones,[1] although the word cyclone is used in meteorology, in a wider sense, to name any closed low pressure circulation. Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust. Most tornadoes have wind speeds less than 110 miles per hour (177 km/h), are about 250 feet (76 m) across, and travel a few miles (several kilometers) before dissipating. The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (483 km/h), stretch more than two miles (3.2 km) across, and stay on the ground for dozens of miles (more than 100 km).[2][3][4] 参考

Terrible tornado Tornadoes,we may have all heard,but everyone to the tornado familiar?Let me introduce!Tornadoes are vortex:air around the shaft spinning coil dragon,the dragon roll centre pneumatic extreme decrease attraction,near the ground dozen meters thick a thin layer of air inside,air is from all directions inhaled vortex bottoms.And immediately he turned around the axis of eddy current,the dragon roll up the wind always cyclones sex,the center of the air pressure can than surrounding low air pressure to 10 percent.Tornadoes power is strong,harmfulness is very big also.In 1995 in American Oklahoma adeimantus Moore city in a land tornadoes,heavy objects such as roof blown out of ten miles away.Most debris falls on land tornado channel of the left side,by weight ranged often have a well-defined landing zone.The lighter fragments could fly to more than 300 kilometers outside before landing.Dragon volumes of attack suddenly and violently,produce the wind is the strongest in the ground.In the United States,a tornado annually cause deaths after the thunder.It for building destruction is quite serious,often be devastating.In intense tornadoes,house roof as gliding like flying.Once the roof coiled left,other parts of the house will follow destruction.Therefore,building houses,if can strengthen the roof of the firm sex,will help to prevent tornadoes caused heavy loss during transit.When we encounter a tornado coming,we should take the following methods from a tornado attack:first,when a tornado coming,if we at home,you should immediately ran downstairs stair avoid tornados.Second,the United States is a tornado in most places,most foreign - 8pm,the time in had better not to travel to the USA.Three,tornado coming in driving bicycle should immediately discard all items,such as low into the subway of place.Fourth,in the wilderness meet tornado should find solid rock,and couldn't find words,should avoid a tornado in bridge.On the hillside should find a quick relatively big rocks from a tornado.Tornadoes which side,you should avoid in rock in the opposite direction,When a tornado after a rock,should immediately swap places,in the opposite direction to avoid it.Well,now you should have further understanding of tornado!When you're really in a tornado,they should take the above method to escape!tornadoes A tornado was a mystery for a long time,it is precisely because of this reason,so it is necessary to understand it.Tornadoes suddenly and violently,produce the wind is the ground the strongest.Because of its occurrence and dispersed all extremely sudden,so it is difficult to it effectively observation.What is a tornado Tornadoes are vortex:air around the shaft spinning coil dragon,the dragon roll centre pneumatic extreme decrease attraction,near the ground dozen meters thick a thin layer of air inside,air is from all directions inhaled vortex bottoms.And immediately he turned around the axis of eddy current,the dragon roll up the wind always cyclones sex,the center of the air pressure can than surrounding low air pressure to 10 percent.The formation of a tornado Tornadoes are the product of thunderstorms in the clouds.Specifically,a tornado is a small part of thunderstorm enormous energy in small area concentration release of a form.Tornadoes formation can be divided into four stages:(1) atmospheric instability produces strong updraft,due to the biggest airflow passing through the rapids influence,it is further enhanced.(2) due in vertical direction and speed and direction are shear wind interaction,of the troposphere updraft in central to begin to spin,forming the mesoscale cyclone.(3) with the mesoscale cyclone to ground development and upward extend,itself tapers and strengthening.Meanwhile,a small area of the enhanced auxiliary close,namely born dragon coils in cyclone is formed within the same process,generate cyclones,forming a dragon roll core.(4) dragon roll core of rotating and cyclone the different,its strength enough to make dragon roll extends to the ground.When the development of the vortex arrive ground height,the earth pressure drop dramatically and the ground wind has risen sharply.Formation dragon volumesTornadoes detection Tornadoes wind what size is it?Nobody really knows,as tornadoes occur to dissipate the short time,the effect area too small,so the existing detection instrumentation no sensitive enough to a tornado in accurate observation.Relatively speaking,doppler radar was effective and a common observational instruments.Doppler radar alignment tornado issued by microwave beam,microwave signal the tornado crumbs and after heavy rain reflected by radar receiver.If the tornado stays away from radar,reflected back to microwave signal frequency will be the low-frequency,Conversely,if a tornado getting closer to the radar is reflected back to high frequency signals will be direction.This phenomenon has been called the doppler frequency.Receiving signal after,radar operator can through the analysis of the data,and calculates the frequency shift of tornado speed and direction of movement.Tornadoes harm In 1995 in American Oklahoma adeimantus Moore city in a LiuLong volumes,such as roof heavy objects such blown out of ten miles away.Most debris falls on LiuLong roll channel of the left side,by weight ranged often have a well-defined landing zone.The lighter fragments could fly to more than 300 kilometers outside before landing.Dragon volumes of attack suddenly and violently,produce the wind is the strongest in the ground.In the United States,a tornado annually cause deaths after the thunder.It for building destruction is quite serious,often be devastating.In intense tornadoes,house roof like hang gliding like flying.Once the roof coiled left,other parts of the house will follow destruction.Therefore,building houses,if can strengthen the roof of the firm sex,will help to prevent tornadoes caused heavy loss during transit.可怕的龙卷风龙卷风，大家可能都听说过，但是大家对龙卷风熟悉吗？让我来介绍一下！龙卷风旋涡：空气绕轴旋转线圈的龙，龙滚中心气压极度减小的吸引，近地面几十米厚的一层薄薄的空气，空气是从四面八方吸入涡底。他立即转身涡流轴线，龙卷风总是气旋性，空气压力的中心可以比周围低气压百分之10。龙卷风的力量是强大的，危害性也很大。1995在美国奥克拉荷马的阿得穆尔市土地龙卷风，重的物体如屋顶吹出十英里远。大多数碎片落在左边的陆地龙卷风通道，由重量范围往往有一个明确的着陆区。较轻的碎片可能会飞到300多公里外降落。攻击暴龙卷风，生产是在地面上最强的。在美国，龙卷风每年造成的死亡在打雷。这对建筑的破坏相当严重，经常是毁灭性的。在激烈的龙卷风，屋顶为滑翔飞行。一旦屋顶卷曲左，房子的其他部分也会跟着毁灭。因此，建房子，如果能加强稳固性的屋顶，将有助于防止在运输过程中造成的重大损失的龙卷风。当我们遇到龙卷风来了，我们应该从一个龙卷风袭击采取以下方法：第一，当龙卷风来了，如果我们在家里，你应该立即跑下楼楼梯避免龙卷风。秒二，美国大多数地方的龙卷风，大多数外国-晚上8点，时间最好不要前往美国。三，龙卷风来驱动自行车应立即丢弃所有的物品，如低的地铁。第四、在旷野中遇到龙卷风应该找到坚实的岩石，也找不到的话，应该避免在桥梁龙卷风。山坡上应该从龙卷风快速找到比较大的岩石。龙卷风的哪一边，你应该避免在相反方向的岩石，当龙卷风经过的岩石，应立即换地方，在相反的方向来避免它。好了，现在你应该有龙卷风的进一步认识！当你真的在一个龙卷风，他们应该采取上述方法逃脱！龙卷风是一个很长时间的一个谜，正是因为这个原因，所以才有必要去了解它，产生风是最强的，因为它的发生和分散都非常突然，所以它很难有效地观察。什么是龙卷风龙卷风都是漩涡：绕着轴旋转的螺旋龙，龙卷中心气动极限，近地面的空气是由四面八方吸入旋涡。数量。龙卷风龙卷风的形成是在云层中雷暴的产物。具体地说，龙卷风是在一个小地区集中释放雷暴巨大能量的一小部分。龙卷风的形成可以分为四个阶段：（1）大气的不稳定性产生强烈的上升气流，由于最大的气流通过急流的影响，它被进一步增强。（2）由于在垂直方向和速度和方向的剪切风相互作用，上升气流在对流层的中部开始旋转，形成中尺度气旋。（3）与中尺度气旋地面发展和向上延伸，本身逐渐加强。同时，小面积的增强辅助关闭，即出生的龙卷我在同一过程中形成了旋风，形成了一个龙芯，（4）旋转的龙芯和旋风的不同，它的强度足以使龙滚向地面，当漩涡到达地面高度时，地面气压急剧下降，地面风力急剧上升。龙卷风检测龙卷风风大小是什么？没有人真的知道，由于龙卷风消散的时间短，影响区域太小，所以现有的检测仪器对一个龙卷风的精确观测不敏感，相对而言，多卜勒雷达是有效的和常用的观测仪器，微波信号的旋风碎波后反射到微波信号频率会是低频率，反之，如果一个龙卷风接近雷达是反映回到高频信号，这种现象已被称为频率的信号。电子分析

A tornado is a violently rotating column of air which is in contact with both a cumulonimbus cloud or, in rare cases, a cumulus cloud base and the surface of the earth. Tornadoes come in many sizes but are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris.Most tornadoes have wind speeds between 40 mph (64 km/h) and 110 mph (177 km/h), are approximately 250 feet (75 m) across, and travel a few miles (several kilometers) before dissipating. Some attain wind speeds of more than 300 mph (480 km/h), stretch more than a mile (1.6 km) across, and stay on the ground for dozens of miles (more than 100 km).[1][2][3]Although tornadoes have been observed on every continent except Antarctica, most occur in the United States.[4] They also commonly occur in southern Canada, south-central and eastern Asia, east-central South America, Southern Africa, northwestern and southeast Europe, Italy, western and southeastern Australia, and New Zealand.[5] 飘过~6203124222

引用网上的。看自己看着改一下。God Father: At a meeting with the heads of crime families from all over the nation, Don Corleone coins a phrase for the underworld that Puzo says will one day be as famous as the expression "Iron Curtain" that Winston Curchill used to describe the separation between communist and democratic countries. The phrase, cosa nostra, means "our land," and the Don uses it to explain that he and his peers are free to live by their own rules, required to follow no laws. It occurs in the sentence, "We will manage our world for ourselves because it is our world, cosa nostra." In the same speech, he says, "We are all men who have refused to be fools, who have refused to be puppets dancing on a string pulled by the men on high." The day after tomorrow: This movie takes a big-budget, special-effects-filled look at what the world would look like if the greenhouse effect and global warming continued at such levels that they resulted in worldwide catastrophe and disaster, including multiple hurricanes, tornadoes, tidal waves, floods and the beginning of the next Ice Age. At the center of the story is a paleoclimatologist (a scientist who studies the ways weather patterns changed in the past), Professor Jack Hall (Quaid), who tries to save the world from the effects of global warming while also trying to get to his son, Sam (Gyllenhaal), who was in New York City as part of a scholastic competition, when the city was overwhelmed by the chilling beginnings of the new Ice Age. In addition to all of the other challenges Dr. Hall faces, he's also going against the flow as humanity races south to warmer climes, and he's nearly the only one going north... Written by TrotParis and Hector are brothers, both princes of Troy,(sons of Priam) Paris steals Helen, (the queen of Sparta) or Menelaus' (king of Sparta) wife. Menelaus gets his big brother Agamemnon to join forces with him and attack. Troy: To win the war, Agamemnon knows he has to have the best (and in that time period it was Achilles (the greastest warrior that ever lived)). So he recruits Achilles to fight with the Greeks. When they attack Troy's beach (and win it) the soldiers find Briesis (cousin of Hector and Paris) hiding in the temple and bring her to Achilles to "amuse him". He starts off playfully provoking her but she and he eventually fall for each other, which creates trouble for the himself and the royal family in "The war that will be remembered for one thousand years." Submitted by Hector Keate - Troy hater A night in the museum: In New York, the unemployed divorced Larry Daley is a complete loser. His son Nick is very disappointed with his father that is gong to be evicted, and Larry accepts the job of night watchman in the Museum of Natural History as the substituted for three old security guards that have just retired to raise some money and pay his bills. In his first nightshift, Larry realizes that everything at the museum comes to life at night. The Museum transforms in a complete chaos with the inexperienced Larry, and he learns that since an old Egyptian stone came to the Museum in 1950, the was statues comes to life until dawn. When Larry brings his son to spend a night with him, the three old guards break in the Museum to stole the magic stone. Larry organizes the historic characters to help him to arrest the criminals and save the museum. Written by Claudio Carvalho, Rio de Janeiro, Brazil Life is beautiful: Guido lives in a pre-WWII Italy. He wins over the woman of his dreams with his sense of humor and ability to make any situation positive. They have a son. He teaches his son with the same zest for life. When they are thrown into a concentration camp together, he tells his then 6-year old son that it is a game and if they play by the "rules" and win all the "points" that they will win a real tank. Guido never reveals the horrors of what is really happening all around them. 以上都是从网上摘下来的,30字一篇是不可能的,两句短句怎说得完两小时的电影呢?这巳是网里最短的概要,你就这概要中再'概要'一下吧!

龙卷风是云层中雷暴的产物。具体的说，龙卷风就是雷暴巨大能量中的一小部分在很小的区域内集中释放的一种形式。龙卷风的形成可以分为四个阶段：（1）大气的不稳定性产生强烈的上升气流，由于急流中的最大过境气流的影响，它被进一步加强。（2）由于与在垂直方向上速度和方向均有切变的风相互作用，上升气流在对流层的中部开始旋转，形成中尺度气旋。（3）随着中尺度气旋向地面发展和向上伸展，它本身变细并增强。同时，一个小面积的增强辐合，即初生的龙卷在气旋内部形成，产生气旋的同样过程，形成龙卷核心。（4）龙卷核心中的旋转与气旋中的不同，它的强度足以使龙卷一直伸展到地面。当发展的涡旋到达地面高度时，地面气压急剧下降，地面风速急剧上升，形成龙卷风。Tornadoes are the products of thunderstorms in the clouds. In particular, a tornado is a form of a small portion of the huge energy of a thunderstorm that is released in a very small area. The formation of tornado can be divided into four stages:(1) the instability of the atmosphere produces a strong updraft, which is further strengthened due to the influence of the maximum flow of airflow in the jet.(2) due to the interaction of wind with shear in vertical direction, the ascending air begins to rotate in the middle part of the troposphere, forming mesoscale cyclone.(3) as the mesoscale cyclone develops toward the ground and extends upward, it itself becomes thinner and enhanced. At the same time, a small area of increased convergence, that the nascent tornado formed in the cyclone, cyclone in the same process, the formation of tornado core.(4) rotation and tornado core of the cyclone in the different, its strength is sufficient to tornado has been extended to the ground. When the vortex of development reaches the ground height, the ground air pressure drops sharply and the ground wind speed rises sharply, forming a tornado.