Calculated as area belowthe price line that is above marginal cost.
计算出低于价格线区域就是大于边际成本的区域。
2
The measures belowthe horizontal line have a negative abatement cost—in other words, by carrying them out, people and companies could both cut emissions and save money.
对于水平线以下的减排措施，其成本为负。也就是说，采取这些措施后，企业、家庭既减少了排放，又省了钱。
3
The distance between the sales line and the total costline at a volume belowthe break-even point represents losses that will occur for various output levels.