氢是自然界中最轻元素。

Hydrogen is the lightest element in nature.

完成了轻元素定量电子探针分析的修正程序。

The correction programs for light elements quantitative electron-probe microanalysis have been performed.

来自太阳的太阳风以其强大的力量吹走了内行星上的氢和氦一类的轻元素，只留下了更小的石质星球。

The solar wind from the sun was so powerful that it swept away most of the lighter elements, such as hydrogen and helium, from the innermost planets, leaving behind mostly small, rocky worlds.