为了提高教学质量,使同学易于接受分子结构的立体概念,制作一些分子模型作为教具,来说明有机化学中的同分异构现象和不饱和烃中的双键或叁键的形成,是非常有意义的。为此,我设法制作了若干种分子模型,这些模型,虽然有些缺点,但在装配和使用上还算简易而能说明问题。今将制作法介绍于下,希同志们指正。(一)原子模型依照原子的相对大小(原子半径:C 是0.77(?),N是0.70(?),O 是0.66(?),H 是0.3(?)),并以1(?)之长放大到2厘米,制出直径分别为3.1厘米(0.77×2×2厘米=3.1厘米)、2.8厘米、2.64厘米和1.2厘米的 In order to improve teaching quality, make students easy to accept the three-dimensional concept of molecular structure, make some molecular models as teaching aids to illustrate the isomerism in organic chemistry and the formation of double or triple bonds in unsaturated hydrocarbons is very meaningful. For this reason, I managed to make a number of molecular models that, although somewhat flawed, are easy to set up and use to illustrate the problem. Now introduce the production method below, hope comrades correct me. (A) The atomic model depends on the relative atomic size (atomic radius: C is 0.77 (?), N is 0.70 (?), O is 0.66 The length is enlarged to 2 cm and the diameter is 3.1 cm (0.77 × 2 × 2 cm = 3.1 cm), 2.8 cm, 2.64 cm and 1.2 cm