发动机出故障时飞机离地面多高？
你可以近距离地观看飞机起飞或降落。
那匹种马四蹄离地狂跳，试图挣脱紧紧拴住它的缰绳。
The stallion bucked as he fought against the reins holding him tightly in.
它的最高点离地面有175米。
如果我们离地球足够远，我们就会发现那里没有空气。
If we go far enough away from the earth, then we will find there is no air.
它们将缓慢向上移动到距离地球30公里的太空边缘。
They will move slowly upwards right to the side of space, 30 km away from the Earth.
有些舞者可以在离地面仅20厘米的杆子下跳舞！
Some dancers can dance under a pole just twenty centimeters off the ground!
随着时间的推移，卫星失去了推进速度，使得地球对卫星的拉力大于把卫星推离地球的力。
As time goes by, the satellite loses its speed, which makes the force pulling it towards the earth stronger than the force pulling it away.
传统的空气污染监测仪通常安装在灯柱上，并被固定在距离地面约九英尺的空中。
Conventional air pollution monitors are normally fixed on lampposts at about nine feet in the air.
能被邀请到非营利性熊猫基地的后台，我感到非常荣幸。在那里，门票收入用来支付研究费用，我可以在600英亩的中心近距离地接触这些可爱的动物。
It was a great honour to be invited backstage at the not-for-profit Panda Base, where ticket money helps pay for research, I was allowed to get up close to these cute animals at the 600-acre centre.
为什么东西不掉离地球课文里已有说明。
Why things don't fall off the earth is explained in the text.
距离地球表面5百万公里。
离地面越高，温度越低。
火星是离地球最近、和地球最相似的行星。
The planet Mars is the closest and most similar planet to Earth.
窗户离地面不远。
它离地球很远。
是为了让火箭的速度足够快，足以逃离地球的引力。
It is to get the rocket going fast enough to escape Earth's gravity.
然而，Gliese 581g 距离地球20光年。
哈雷意识到水星离地球如此之远，以至于很难确定它的视差角。
Halley realised that Mercury was so far away that its parallax angle would be very difficult to determine.
它们离地面很近，但是这些蓝莺也会在灌木密度低的森林里面筑巢。
They're pretty close to the ground, but these warblers also nest in forests that have low shrub density.
在她到达二楼的时候——离地面只有30英尺的时候——他抓住了她。
By the time she was level with the 2nd Floor—and only 30ft from the ground—he grabbed her.
每个房间都有一个舒适的夹层区域和一个离地约八米的鹿角围栏阳台。
Each has a snug mezzanine area and an antler-fenced balcony about eight metres above ground.
它的轨道将它带到了距离地球1.22亿英里之内，距离地球相当之近。
Its orbit brought it relatively close to the Earth, within 122 million miles of it.
在泥土中寻找种子和昆虫，咯咯地叫，在风中扑打着翅膀，只飞离地面几尺高。
Scratch in the dirt for seeds and insects, cluck and cackle and fly just a few feet off the ground with wings thrashing in the wind.
当这些负电荷距离地面不到100米时，会遇到一股来自地面的正电荷粒子流。
When a stream of these negatively charged electrons comes within 100 meters of the ground it is met by a stream of positively charged particles that comes up from the ground.
他跪下来，在离地面不远处，用他的刀向那根看上去毫无生气的树枝砍了下去。
He knelt and with his knife cut the lifeless-looking branch through, not far above the earth.
卫星以11.2千米每秒的速度前进可以脱离地球引力，这被称为“逃逸速度”。
Eleven point two kilometers per second, at which satellites can be freed from the gravitation of the earth, is called "escape speed".
天文学家在距离地球不远处发现一颗小行星，它与地球在同一轨道上围绕太阳运行。
Astronomers have detected an asteroid not far from Earth, moving in the same orbit around the Sun.
事故发生时，这架单引擎飞机正在离地几英尺的空中悬停准备降落，此时遇到了阵风。
The mishap occurred when the single-engine aircraft was caught by a gust of wind while hovering a few feet above the ground before landing.
冥王星不属于这两类，因为它离地球太远，体积又小，使得它的真正性质成为一个谜。
Pluto is not included in either category, because its great distance from Earth and its small size make this planet's true nature a mystery.
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