根据美国国家航空航天局的描述，他们是太阳磁场的缺口，太阳磁场制造了一个穿透这颗恒星外层大气的空洞—日冕，允许气体逃脱。
They are gaps in the sun's magnetic field which make a hole through the star's super-hot outer atmosphere — the corona — allowing gas to escape, according to a NASA description.
这些碎片本身几乎不含硫，但天文学家相信，木星外层大气之下的云层中确实含有硫。
The fragments themselves almost certainly contained no sulfur, but astronomers believe that the cloud layer below Jupiter's outer atmosphere does contain sulfur.
最后，恒星大气的最外层部分是日冕，这是一个由于外层对流导致的超热区域。
Finally, the outermost part of a star's atmosphere is the corona, which if super-hot might be linked with convection in the outer layers.
图像显示太阳最外层的大气上只有日冕。
The images show only the Sun’s corona, the outermost layer of the atmosphere.
在气态表层之下，它们并没有固体的表面——外层大气产生的压力融化了它们的内部，尽管它们可能具有石质的核心。
Beneath these outer layers, they have no solid surfaces - the pressure from their thick atmospheres liquefy their insides, although they might have rocky cores.
射电望远镜安装在月球背面就可以探测到那些无法在地球表面被检测到的长波，因为它们都被地球大气层的最外层吸收了。
A lunar-based radio telescope would be able to detect long wavelengths that cannot be sensed on Earth because they are absorbed by the outermost layers of the planet's atmosphere.
平流层之上，看上去深蓝色的地带，是稀薄的高层大气，逐渐过渡到冷而黑暗的外层空间的真空地带。
Above the stratosphere, visible as a darker blue bands, are higher and thinner atmospheric levels that gradually fade away into the cold dark vacuum of outer space.
太阳的外层大气称为日冕，那里的温度比光球层(即我们所看到的太阳表面)的温度要高好几百度。
The Sun's outer atmosphere is called the corona and it is several hundreds of times hotter than the photosphere, or the visible surface of the star.
但有一些则是宇宙射线和外层大气碰撞的结果。
Some, however, are the result of collisions between cosmic rays and the gases of the upper atmosphere.
最常见的皮肤癌发生于表皮(皮肤外层)，因大气中臭氧层变薄而发生频率越来越高。
The most common types arise in the epidermis (outer skin layer) and have become more frequent with the thinning of the atmosphere's ozone layer.
日冕：太阳大气的最外层，可以延伸到几个太阳直径，甚至更远。
Corona: the outer solar atmosphere, can be extended to a number of solar diameter, or even farther.
比如，新生恒星是异常活跃的，它们不断变化的外层大气至少会导致背景噪声。
For one, nascent stars are incredibly active and their changing outer atmospheres can at the very least make for background noise.
大气最外层的空气非常稀薄，但空气分子仍能产生阻力减慢人造卫星的速度，这样工程师们就得定期把它们推回到其正确的轨道上。
Air in the atmosphere's outermost layer is very thin, but air molecules still create drag that slows down satellites, requiring engineers to periodically boost them back into their proper orbits.
光球层的亮度阻止了人们看到太阳大气层的外层。
The brightness of the photosphere prevents people from seeing the outer layer of the sun's atmosphere.
四部分的外层封皮充满空气用来保持与大气的压力相协调。
The outer envelope of all four sections contains air maintained at atmospheric pressure.
无一例外，中子星的轨道都在其巨星同伴的外层大气之中。
In each case, the neutron star is orbiting within the outer atmosphere of its supergiant companion.
热大气层，热电离层：大气层介于中间层和外层空间之间的最外一层，在这一层中温度随高度而稳定增加。
The outermost shell of the atmosphere, between the mesosphere and outer space, where temperatures increase steadily with altitude.
他目前在追踪观测日冕(即日食时我们看到的太阳的外层大气)中发射出的粒子流。
He tracks streamers from the solar corona, the sun's outer atmosphere seen during eclipses.
在外层空间，由于没有大气保护层对阳光的保护作用，那里的阳光要比地球上强烈得多。
In outer space, with no swaddling atmosphere to diffuse it, sunlight is infinitely more powerful than on earth.
在外层空间，由于没有大气保护层对阳光的保护作用，那里的阳光要比地球上强烈得多。
In outer space, with no swaddling atmosphere to diffuse it, sunlight is infinitely more powerful than on earth.
应用推荐