If a spacecraft travels faster than 11 km a second, it escapes the Earth's gravitational pull.
如果一架宇宙飞船飞行超过每秒11公里，它就能摆脱地球引力。
As the probe is 320 million km away from Earth, there is a signal delay of over 10 minutes if the research team tries to control it from Earth.
由于探测器距地球3.2亿公里，如果研究小组在地球上控制探测器，会有10分钟以上的信号延迟。
This island is a huge volcano with a diameter of 10 km almost proper conical shape.
这个岛是一个巨大的直径达10公里的特有的锥形火山。
Racing over in his car, he smashed into a concrete barrier at 140 km an hour in a 50 km zone.
他在限速50公里区内急速行驶，以每小时140公里的速度撞到一个水泥墩上。
Then infantrymen separated for groups, ran about a km and occupied trenches for repelling an enemy's counterattack.
然后，步兵分为几个作战小组，跑了大概一公里并占据了壕沟，抵御敌方的反击。
Located at the mouth of the Yangtze River, the island is China's 3rd biggest island, with an area of 1267 sq km and a relatively intact ecology system.
崇明岛位于长江口，是中国第3大岛，面积1267平方公里，生态环境相对完好。
That would mean an annual loss of 3, 250 sq km a year, a good chunk of rainforest but less than the area of discarded pasture that returns to forest each year.
这就意味着每年森林消失面积为3,250平方公里，对雨林来说的确不小，但还不如每年回归森林的废弃牧场面积大。
That would mean an annual loss of 3,250 sq km a year, a good chunk of rainforest but less than the area of discarded pasture that returns to forest each year.
这就意味着每年森林消失面积为3，250平方公里，对雨林来说的确不小，但还不如每年回归森林的废弃牧场面积大。
It will travel around the Earth at a height of 300 km.
它将在300千米的高度绕地球运行。
According to a report, Google's self-driving cars clocked 1,023,330 km, and required human intervention 124 times.
据报道，谷歌的自动驾驶汽车行驶了1023330公里，期间需要人工干预124次。
Johann Franz Encke, Director of the Berlin Observatory, finally determined a value for the AU based on all these parallax measurements: 153,340,000 km.
柏林天文台主任约翰·弗朗茨·恩克最终根据所有这些视差测量结果确定了天文单位的一个值为153,340,000公里。
An arctic tern, on its 20,000 km flight from the extreme south of South America to the Arctic circle, will take no notice of a nice smelly herring offered from a bird-watcher's boat along the way.
北极燕鸥在从南美洲的最南端飞往北极圈的路线全长2万公里，但燕鸥这一路上都不会留意观鸟船送来的散发臭味却又可口的鲱鱼。
Indianapolis is best known for the Indianapolis 500, which is a popular 500-mile (805 km) automobile race held once every year.
印第安纳波利斯最著名的赛事是印第安纳波利斯500，这是一场每年举行一次的、受欢迎的500英里（805公里）汽车赛。
For those uninitiated in scientific ocean drilling, the previous record was a little over 4 km.
可以告诉没有海洋科学钻探知识的人，先前的纪录是四公里过一点儿。
You start by running 5 km, move up to a 10 km, then a half marathon.
你先跑5公里，再跑10公里，然后跑半程马拉松。
With a speed of 250 km per hour, it's also the first mountain heavy train line to provide a 4G network.
它的时速为250公里，也是第一条提供4G网络的山地重载铁路线。
It flies at 240 km per hour at a height of 4,500 meters in the sky.
它在4500米的高空以每小时240公里的速度飞行。
The hypocentre was at a shallow depth of 10 km.
爆心投影点位于10km的浅层深度。
Itsrevolutionary technology means that propulsion comes from the track, not thetrain, resulting in low noise, speeds of up to 285 km/h and a journey time ofjust eight minutes.
采用革新技术的磁悬浮列车依靠轨道的推力前进，而非火车车身。 因此，运行过程中，噪音极低，时速达285公里，浦东到市区只需八分钟。
In April, a Soyuz capsule landed 420 km off course after explosive bolts failed to detonate before re-entry, sending the craft into a steep descent.
今年4月，“联盟号”飞船返回舱在进入地球大气层之前因爆炸螺栓未能引爆，最后在偏离预定着陆点420公里的地方惊险着陆。
The rollover accident happened at a curve just 9 km from the start point.
翻车发生在距离出发点9公里左右的一个弯道。
That means they're very, very long relative to their girth, so a 22, 000-mile (35, 400 km) cable should be a snap, right? Well, no.
也就是说这些绳链相对于他们的周长非常非常长，所以制造一根长22,000英里（35,400公里）的电缆应该是非常容易的，是吗？
The tunnel-bridge links Chongming Island to the Pudong New Area via the Changxing Island over a 25.5 km expressway.
该隧桥南起浦东新区、经长兴岛，北止崇明岛，全长25.5公里。
Master Gunnery Sgt Charles Padilla, the one US Marine, achieved a personal goal of 85 miles (137 km) in one day, which sparked a friendly trans-Atlantic rivalry.
唯一的一名美国海军军士长查尔斯·帕迪拉就创下了一天之内跑85英里（137公里）的个人最好成绩，而这引起了一场跨越大西洋的友谊赛。
Given the size of the quake, damage can be expected with a 100 km radius of the epicenter, says Robbie Morris, a project scientist with the Australian Tsunami Warning System.
考虑到这次地震的级别，预计破坏范围在距震中半径100公里的范围内。
The shooting stars are falling at a speed of 66 km per second.
该流星群速度可达每秒66公里。
500 km of a perfect road to Udachny (" Lucky ").
意为‘幸运’，的一条500公里的完美之路。
The Red Planet is currently around a 100 million km distant from us and shines like a brilliant red beacon as it rises in the east on its journey across the night sky.
这个红色的星球目前离我们大约是1亿公里，当它在东方的夜空升起时就象一盏红色的指路明灯那样耀眼。
The Red Planet is currently around a 100 million km distant from us and shines like a brilliant red beacon as it rises in the east on its journey across the night sky.
这个红色的星球目前离我们大约是1亿公里，当它在东方的夜空升起时就象一盏红色的指路明灯那样耀眼。
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