落在地平线上的太阳像个大火球。
西边的太阳像一个发光的火球正在下沉。
目击者都谈到有个大火球。
炙热的火球冲上天空。
那些是大火球！
比如说，我们怎么知道恒星真的是像太阳一样巨大的火球，而且离我们很远呢？
How do we know, for example, that the stars are really huge balls of fire like the Sun and very far away?
他们看到一道强光和一个巨大的火球直冲天空达几百英尺。
They saw a big flash and a huge ball of fire reaching hundreds of feet into the sky.
另一个是由纽伦堡的汉斯·斯托普勒于1597年制作的旋转火球。
Another is a revolving arquebus, produced by Hans Stopler of Nuremberg in 1597.
火球要大的多，而且膨胀速度迅速的多。
There the fireball is much larger and expands much more rapidly.
有时能在暴雨中见到漂浮着的火球的重生
Recreating the floatingfireballs sometimes seen during thunderstorms
他甚至影响到了那些从来没有召唤过愤怒的火球的人。
His influence extends even to people who have never conjured a fireball in anger.
当火球冷却时，内部的气化物质压缩形成固态微粒云。
As the fireball cools, the vaporized materials in it condense to form a cloud of solid particles.
大火球！
火球在形成之后立刻迅速膨胀并上升，像热气球一样。
Immediately upon formation, the fireball begins to grow rapidly and rise like a hot air balloon.
据说2006年5月16日晚人们看到了至少三个不同的火球。
It seems at least three individual fireballs were seen on the night of 16 May 2006.
那位农民说，一个火球从天空划过之后，他就看到了这个绿色的物体。
The farmer said he saw the green object come into view just after a fireball had passed overhead.
目前来看，新发现这颗类似木星的行星好像已经从火球阶段幸存了下来。
The new Jupiter-like planet discovered appears to have survived the fireball, for the moment.
火球最初的迅速膨胀剧烈地压缩着周围的大气，产生了威力巨大的冲击波。
The initial rapid expansion of the fireball severely compresses the surrounding atmosphere, producing a powerful blast wave.
10秒钟之内最大将达到2200米，同时火球以100米/秒的速度上升。
This increases to a maximum of 2200 m within 10 seconds, at which time the fireball is also rising at the rate of 100 m/sec.
人工的火球看起来炽热的是由于在蒸汽态的原子的激发而导致，而不是由于氧化。
For another, the artificial fireballs seem to be glowing because of the excitation of theatoms within the vaporised material rather than because of oxidation.
人工的火球看起来炽热的是由于在蒸汽态的原子的激发而导致，而不是由于氧化。
For another,the artificial fireballs seem to be glowing because of the excitation of theatoms within the vaporised material rather than because of oxidation.
空中爆炸指的是核爆发生在海拔30公里以下，且火球有足够高度不接触到地面。
An air burst is an explosion in which a weapon is detonated in air at an altitude below 30 km but at sufficient height that the fireball does not contact the surface of the earth.
空中爆炸指的是核爆发生在海拔30公里以下，且火球有足够高度不接触到地面。
An air burst is an explosion in which a weapon is detonated in air at an altitude below 30 km but at sufficient height that the fireball does not contact the surface of the earth.
应用推荐