求翻译：比如，空气的主要成分：氧气(O2)、氮气(N2)；煤气的主要成分：甲烷(CH4)；吃的糖(C6H12O6)、水果(色素、纤维素和果胶)、喝的水(H2O)、戴的眼镜(树脂)、项链(金属)、戒指、手镯，开的车(金属、聚合物)，以及我们的皮肤、指甲、头发(蛋白)……化学的研究范围非常广，其中，一部分是能够满足人们日常生活和工业生产需要的。是什么意思？

For example, the main component of air: oxygen (O2), nitrogen (N2); gas main components: methane (CH4); eat sugar (C6H12O6), fruits (pigments, cellulose and pectin), drinking water (H2O ), wear glasses (resin), necklace (metal), rings, bracelets, open the car (metal, polymer), and our skin, nails, h

For example, the air of 2 main components: an oxygen (O), nitrogen (N 2) The main ingredients; gas: methane (CH; eat the sugar ( 4) 6 C H O 12 6) and fruit (coloring, cellulose and pectin), the water you drink (H O), 2 (resin), the glasses necklace (metal), rings, bracelets, and cars (metal, polymer

For instance, air principal constituent: Oxygen (O2), nitrogen (N2); Coal gas principal constituent: Methane (CH4); Eats sugar (C6H12O6), the fruit (pigment, cellulose and pectin), drink water (H2O), wears the eyeglasses (resin), the necklace (metal), the ring, the bangle, start vehicle (metal, poly

Such as, air of main components: oxygen (O2), and nitrogen (N2); gas of main components: methane (CH4); eat of sugar (C6H12O6), and fruit (pigment, and cellulose and pectin), and drink of water (H2O), and wearing of glasses (resin), and Necklace (metal), and ring, and bracelet, opened of car (metal,

For example, the principal ingredients of the air: Oxygen (O2), nitrogen (N2); The principal i