地球是“宇宙射击场”中的一个靶子，容易随机遭遇各种猛烈的撞击事件，这在数十年前从未受到过怀疑。
Earth is a target in a cosmic shooting gallery, subject to random violent events that were unsuspected a few decades ago.
全新的预碰撞安全系统可以预先检测到撞击事件。
The all-new Prius pre-collision system can detect a potential impact before you do.
而与此同时，灾难性撞击事件的风险一直存在，并有过微弱的增长。
Meanwhile, the risk of catastrophic impact continues to grow ever fainter.
1908年发生在西伯利亚通古斯的就是这样的撞击事件。
这是一个晴朗的夏天，撞击事件怎样发生目前还不清楚。
It was a clear summer day and it's not yet clear how the mid-air collision came about.
在那些远离希克苏鲁伯陨石坑的地点，有证据显示只发生过一次撞击事件。
The sites that are distant from Chicxulub show evidence of only one impact.
关于此次撞击事件的最新报道暗示了反对捕鲸的活动人士负有责任。
New reports of the clash suggested the anti-whaling activists had been to blame.
对他来说，月球撞击事件不过是一个轨道测算练习的有趣结果罢了。
To him, the object striking the moon was an interesting outcome to a mathematical exercise in trajectory and nothing more.
在埃及北部的一列火车撞击事件中造成至少51人死亡，130多人受伤。
At least 51 are dead and more than 130 injured in a train crash in northern Egypt.
美国鸟撞委员会说：每年，鸟撞击事件导致美国的民用和军事航空业大约6亿美元的损失。
Bird strike Committee USA says bird strikes cause about six hundred million dollars in damage to American civilian and military aviation each year.
在过去五年中，由于低劣的铁路维护和驾驶培训造成的铁路撞击事件已经致使42人死亡。
Rail crashes blamed on shoddy maintenance and poor driver training over the past five years have killed 42 people.
油驳船撞击事件一天后，橙色围油栏已设置在维克茨堡附近的河域，工作人员正在从河里撇油。
Orange containment boom is stretched across part of the river near Vicksburg, and crews are skimming oil from the water a day after the barge crashed.
电视网播放了国外有关“昭南丸”撞击事件的视频录像，而两家报纸在头版刊登了此次撞击事件的画面。
TV networks showed video footage of the collision taken from aboard the Shonan Maru, while two newspapers carried front-page photographs of the incident.
多年来天文学家们一直对行星撞击事件忧心忡忡，以上两件事件不仅需要天文学家的关注，还需要我们的重视。
This pair of unrelated events ought tofocus minds, and not just among the small group of astronomers who have been worrying about asteroid strikes for many years.
警方周日透露，这名警察在这起高速撞击事件之前不久曾看见这辆小汽车在道路护栏抬起时停在那个郊区路口。
The officer had spotted the car sitting stationary on the rural crossing with the road barrier up moments before the high-speed crash, police said on Sunday.
在设计受力极限，头盔会破裂，撞击点处会残缺，以吸收大部分冲击力量，一般在比较重大撞击事件后应当更换头盔。
Design stress limits, helmet will burst, impact site will be incomplete, to absorb much of the brunt force in generally significant should replace the helmet after the impact event.
尽管目前有些组织在收集分析数据，以避免潜在的碰撞。但最近的撞击事件透露出这些数据分析偶尔也出差错，数据收集量也很不足。
Although some organisations collect and analyse data on potential collisions, they are not always precise and there are gaps in their knowledge-as the recent collision has shown.
不过，据英国阿伯丁皇家学院大卫•乔利和一个研究小组认为，乌克兰博提施撞击地球事件比之前的墨西哥希克苏鲁伯撞击事件要晚5,000年。
But according to David Jolley of King's College in Abaerdeen, U.K. and a team of researchers, Bolytsh slammed into the planet less than 5, 000 years before the giant Chicxulub impact in Mexico.
他们对是否是撞击的影响还是其他的天气影响导致后冰河世纪的新仙女木事件也存在分歧。
They also disagree about whether an impact or some other climate event caused the Younger Dryas at the end of the ice age.
根据联邦航空局的野生动物撞击数据库，肯尼迪国际机场每年都会发生几次喷气式飞机撞上海龟的事件，通常是在六月末或七月初。
Jets hit turtles a few times each year at JFK, usually in the final days of June or earliest days in July, according to the FAA's wildlife strike database.
天外来客对地球的撞击与白垩纪的物种灭绝事件有着最为密切的联系。
An extraterrestrial impact is most closely linked to the Cretaceous extinction event.
会不会发生小行星撞击地球的事件呢？
这次撞击2500万年后，也就是三叠纪-侏罗纪灭绝事件中，crurotarsan和其它至少一半的动物都灭绝了。
Then, 25 million years after that, in what’s known as the Triassic-Jurassic extinction event, the crurotarsans and at least half of all other animal species vanished.
平均而言，类似于博提施陨石坑规模或更大一些的撞击地球事件的发生频率是百万年左右。
On average, a crater the size of Boltysh or bigger should hit Earth once every million years or so.
最近一次撞击发生当日，海默尔和他的小组正好发布了2009年撞击木星事件的新照片和分析报告。
The recent impact happened the same day Hammel and her team released new photos and analysis of the 2009 Jupiter collision.
与此同时，两次撞击木星时间如此接近，这一诡异的巧合让天文学家抓破脑袋不得其解，因为，长久以来，撞击木星事件都被认为是相对罕见的。
Meanwhile, the odd coincidence of two Jovian smashes so close together has astronomers scratching their heads, since impacts on Jupiter have long been thought to be relatively rare.
原则上，我们可以估算陨石撞击会引发多大程度的灾难性事件。
We can, in principle, now estimate how large a meteorite would have to have been to cause catastrophic events.
新闻博物馆选取了60件联邦调查局收藏的用于恐怖事件审判的证据，其中包括撞击世贸大厦后残留的大块飞机碎片。
The Newseum selected 60 pieces of evidence the FBI had in storage for use in terror trials, including huge pieces of an airplane that survived ramming into the World Trade Center towers.
新闻博物馆选取了60件联邦调查局收藏的用于恐怖事件审判的证据，其中包括撞击世贸大厦后残留的大块飞机碎片。
The Newseum selected 60 pieces of evidence the FBI had in storage for use in terror trials, including huge pieces of an airplane that survived ramming into the World Trade Center towers.
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