emission-line object

例句：

1. 1. The company's new product has a high emission line, which is expected to reduce carbon emissions significantly.
   该公司的新产品具有高排放线，预计将显著减少碳排放。
2. 2. The research team focused on the emission line of the pollutant during the experiment.
   研究团队在实验中关注了污染物的排放线。
3. 3.The emission line of the gas is determined by its boiling point and pressure.
   气体的排放线由其沸点和压力决定。