Without the participation of the emotion factor, the chemical study activity would neither happen nor maintain.
没有情感因素的参与，化学学习活动既不能发生也不能维持。
These factors include: time factor, information dissymmetry factor, product homogeneity factor, emotion factor, merchandise esthetics.
这些原因包括：时间因素、信息不对称因素、产品均质化因素、情感因素、商品审美化趋势。
Chemistry is a nature science, with rigorous logic but weak emotion in content. It is no doubt that the emotion factor has a great effect on chemistry teaching.
化学作为一门自然科学，其内容逻辑性强，情感色彩较淡，但情感因素在中学化学教学中的作用同样不容忽视。
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