The detection and recognition of infrared moving small target in a sky background is considered in this paper.
研究了天空背景下红外运动小目标的检测与识别。
Released as a vapour at high altitude it should produce a screen of properly sized particles, even in a sky that is already hazed.
在高空把硫磺酸蒸发释放，即使是在已经充满云雾的空中，也会形成一层大小合适的微粒屏障。
Asked in a Sky News interview whether he had any objection to the decision to release Megrahi, Prescott said: "No, I don't have any objection."
在接受天空新闻台采访时，当被问及对释放迈格·拉希的决定是否持有任何异议时，普雷斯科特说：“没有，我没有任何异议。”
This night desolate what drunk one night, for whom it is. If Qing. Touch the stars in a sky, whether will the silver mirror in branches difficult?
此夜凄凉为哪般，醉一宿又是为谁…假如擎手可摘星辰于幽情云天，是否就不会菱花镜里折枝难？
In the mornings the sky appeared a heavy shade of mottled grey.
清晨，天空看上去是斑驳的深灰色调。
In sharp contrast to her mood, the clouds were breaking up to reveal a blue sky.
乌云渐渐散开，露出了蓝天，这和她的情绪形成了鲜明的对照。
All this meant it was easy to see a kite in the sky but you could also hear Maori kites.
这一切意味着我们可以轻易看到在天空中的风筝，但你也可以听到毛利人的风筝。
The Winter Hexagon involves some of the brightest stars visible, forming a large and easily found pattern in the winter sky of Earth's northern hemisphere.
冬季六边形包括一些可见的最亮的恒星，它们在地球北半球的冬季天空中形成了一个大而容易辨认的图案。
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze that mirrors our fear of the dark.
在大多数城市里，天上看起来好像没有星星，仅剩一层薄薄的雾霾，这反映出我们对黑暗的恐惧。
A cloudless, deep-blue sky looked down on them, for the wind had driven away every little cloud in the night.
万里无云，湛蓝的天空俯视着他们，风把夜晚的每一片云彩都吹走了。
Then, a couple of months later, one morning in the eastern sky just before dawn, Sirius would reappear.
然后，几个月以后的一天早晨，在黎明前的东方的天空上，天狼星又重新出现了。
The sun shone brightly in a cloudless sky.
太阳在无云的天空中明亮地照耀着。
To ensure the eggs receive a warm welcome she carries the egg pouch in her mouth presenting it to the sky following the sun.
为了保证卵能得到一个温暖的迎接，她把育儿袋叼在嘴上，然后面向天空中太阳的方向。
The object in the sky apparently had wings far too short and wide for a bird.
天空中这个物体的翅膀显然太短太宽了，不是鸟类。
They were holding what looked like ropes that led, via some kind of mechanical system, to a giant bird in the sky.
他们拿着一些看起来像绳子的东西，这些“绳索”通过一些机械系统，延伸向天空中的一只“巨鸟”。
There was a lowering sky overhead, sloppy ground under foot, and a winter chill in the air.
头顶上是低沉的天空，脚下是泥泞的地面，空气中弥漫着冬日的寒意。
Tons of gold have fallen out of the sky in Russia after a cargo plane malfunctioned in mid-air this morning.
今天早上，俄罗斯一架货机在空中出现故障，数吨黄金从天而降。
There is a little single marigold which shuts up in a hurry if the sky becomes clouded.
有一小片孤零零的金盏花，如果天空乌云密布，它就会匆忙地闭合。
When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong.
当飞机从空中坠落，比如2009年6月30日的一架也门客机在飞往印度洋的科摩罗群岛时那样，黑匣子是找出问题所在的最佳选择。
If the Great Depression is any guide, we may see a drop in our sky-high divorce rate.
如果以大萧条为鉴，我们可能会看到我们极高的离婚率有所下降。
When the moon drops out of the evening sky in a few more weeks, try to find Capricornus.
几个星期后，当月亮不再出现在夜空中时，试着找找摩羯座。
The moon in the sky gave a big laugh, too.
天上的月亮也露出了大笑脸。
China is preparing to put a man-made moon in the sky above Chengdu by 2020.
中国正准备在2020年前在成都上空放置一个人造月亮。
Above which city is China preparing to put a man-made moon in the sky by 2020?
到2020年，中国准备在哪个城市上空放置一个人造月亮？
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。
A few days ago, I was flying comfortably in a cloud, enjoying the view from the sky.
几天前，我舒舒服服地在一朵云里飞行，欣赏着天上的景色。
We see the sky is blue, but down in the valley it's darker—it's like on a cloudy day.
我们看到天空是蓝色的，但山谷下面却很暗——就像阴天一样。
After a full day of fun activities, visitors can take a rest, listen to the night sounds, and watch the stars in the huge sky.
经过一整天的娱乐活动之后，游客们可以休息一下，聆听夜晚的声音，观赏夜空中的星星。
He found that one falcon had already been able to fly high in the sky, while the other one was staying at the branch of a tree quietly without moving.
他发现一只猎鹰已经能在高空中飞行，但另一只静静地待在树枝上一动不动。
In fact, I hated it at that moment, but my father said to me, "You can always see a beautiful sky at the top of the mountain, but you can't see it before you reach the top."
实际上，我在那一刻十分厌恶它，但父亲对我说：“在山顶上你总是能看到美丽的天空，但在到达山顶前你是看不到的。”
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