Methane and black carbon (sooty particles) emitted by inefficient stove combustion are powerful climate change pollutants.
因炉灶燃烧不完全而释放的甲烷和黑碳(煤烟颗粒)是导致气候出现重大变化的污染物。
Experts predict that the highly polluting, grossly inefficient internal combustion engine will be superseded by a more environmentally friendly energy converter within 50 years.
专家预测，高污染、低效率的内燃机，在五十年内会被比较环保的能源转换器取代。
Experts predict that the highly polluting, grossly inefficient internal combustion engine will be superseded by a more environmentally friendly energy converter within 50 years.
专家预测，高污染、低效率的内燃机，在五十年内会被比较环保的能源转换器取代。
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