nitrogen 氮6 v3 R! C$ O% X/ r" i3 f+ D
helium 氦% _4 u! q6 |0 ~- P7 H; U
carbon 碳7 a* \4 X, _5 C I
calcium 钙9 V- R+ P3 n$ v( N+ t- ]! v5 X
silicon 硅% K& ]+ p& r0 b- C( C9 x
sulfur 硫
5 O( b8 a" u) Z% b" d iodine 碘, h6 M1 m0 ?6 R# l
compound 化合物* e0 N6 b, `& g- f
hydrocarbon 碳氢化合物
0 D/ h5 N1 y# ^" l8 n0 g% N derivative 衍生物
2 q$ j" Y# u9 ?6 M( ?& x alchemy 炼金术3 g! O$ _" P* |& C
petroleum (oil) 石油
8 k: R6 d& z( f' u petroleum products 石油产品
9 l0 l& m$ B% v/ v( }( V9 m# E* ` crude oil 原油! R+ M, i3 V1 F
refine 提炼,精炼& G- ?( x+ i; W
gasoline 汽油# A$ q2 {' R& e% f9 V. L4 D
methane 甲烷
2 p3 R2 i/ k4 f7 b solution 溶液 |