So it causes much concern from the society and educators. The negative effect mainly displays their indifference to the social emotion, the weakening of the moral emotion, the decline of the emotion cognition level and the imbalance of the emotion expression. 而负面影响主要表现在青少年对社会情感的淡化、道德情感的弱化、情感认知水平的下降和情感表达的失衡等方面。
The pollution emissions beeline together with the indifference curve are consided and concluded that if there are no change in industrial structure, productivity, pollution disposed technology and management level. 将污染物排放直线与环境经济学中的无差异曲线相结合,分析得出在当地的产业结构、生产技术、污染治理技术和管理水平等都不变的情况下,存在最大效用值,并达到均衡。