Relative volumes of the gasses in earths atmosphere. Ratios should be roughly correct. (sidelengths = cuberoot of volumes) 空气 氩 气氛 大气成分的
For your energy production projects, articles, publications and more use this set of editable gas cylinder vectors with chemical labels 气体 工业 炸弹 Gas Cylinder Vectors
Stars produce energy and helium by nuclear fusion of hydrogen running the carbon-nitrogen-oxygen process 天文学 天体物理学 试用版 Cno