The Earth’s surface emits infrared radiation it has absorbed from the sun. Greenhouse gases partly trap that energy as heat, keeping the planet habitable.

地球表面释放出从吸收自太阳的红外辐射，温室气体将这种能量作为热部分地保留下来，使得地球成为可以繁衍生息之地。

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Greenhouse gases absorb this infrared radiation and trap the heat in the atmosphere.

温室气体吸收红外辐射的热量，并且把这个热量保存在大气层中。

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They are to utilize light radiation pressure to trap and manipulate micro-particles including dielectric spheres, cells and biological macro-molecules.

光镊技术，又称光学捕获技术，它是利用光的辐射压力来捕获和操纵包括电介质颗粒、生物细胞及生物大分子在内的微小粒子的。

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By interplanetary space, we are talking about an environment in which space radiation is much more intense than it is in LEO, because above Earth orbit is the geomagnetosphere, the Van Allen belts, which trap charged particle radiation coming from deep space.

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