喷气式飞机目前装备的防撞设备已让大型客机的空中碰撞鲜有发生，不过许多轻型飞机和直升飞机并未加载此类设备。
The anti-collision equipment currently fitted to jets has already helped make mid-air encounters between airliners rare, but many light aircraft and helicopters are not fitted with such kit.
鉴于太空中的物质很多，而地球周围的区域则有限，政府希望减少发生碰撞的机会。
With so much stuff in space, and a limited area around our planet, the government wants to reduce the chances of a collision.
关于如何解决这个问题，以往就有一些建议，包括使用人工智能系统来防止空中交通工具之间发生碰撞。
Past proposals to solve this problem have included artificial intelligence systems to prevent collisions between air traffic.
行星凝聚过程中，重力和微粒碰撞造就了高温环境，这对融化漂浮在太空中的金属粒子是必需的，各种矿物也开始形成。
As the planets congealed, gravitational forces and particle collisions created the high temperatures necessary to melt metals floating around in space, and minerals began their diversification.
天文学家仍然致力于寻找太空中新的声源：黑洞碰撞，脉冲星干扰，伽马射线爆破。
Astronomers keep discovering new noisemakers in space: colliding black holes, glitching pulsars, gamma ray bursts.
碰撞中的触角星系，太空中的高动力碰撞，在未来25亿年间银河系与仙女星系如果发生碰撞，也有可能产生此现象。
The colliding Antenna Galaxies, a hyperkinetic smashup in space, may approximate what will happen when the Milky Way and the Andromeda Galaxy collide in about 2.5 billion years.
如果你想在空中也出现许多小碎块，你可以使用粒子流，在碰撞中发射自定义的物体。
If you want to show many small chunks in the air then you can also use a Particle Flow and on collide emit the custom object instances.
因此，对空中飞行碰撞风险问题进行研究是非常必要的。
与太空中很小的漂浮物的碰撞可能完全摧毁一艘飞船。
在碰撞事故之后的几个小时，大楼仍然正缓慢燃烧，带有黑色的烟在空中悬挂。
Several hours after the crash, the building still was smoldering, with black smoke hanging in the air.
在碰撞事故之后的几个小时，大楼仍然正缓慢燃烧，带有黑色的烟在空中悬挂。
Several hours after the crash, the building still was smoldering, with black smoke hanging in the air.
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