英语翻译使用生物燃料可以改善生态环境,缓解大气污染.随着工业化进程的迅猛发展,世界范围内汽车保有量快速增加,目前以汽油为动力的汽车尾气对大气的污染程度,已占所有大气污染源的60％左右.以乙醇为例,乙醇是良好的车用燃料,除了它的燃烧性能可与汽油相比外,汽车发动机的压缩比可以提高,另外可使用较高的空气与燃料比例,燃烧完全.另一方面,减少汽车排放CO2量是防止地球气温升高的最有效的措施之一.生物乙醇的燃烧产物为水,并且根据检测,当汽油中掺入10％－20％乙醇时,这种混合燃料排出的尾气完全可以符合加利福尼亚州严格
2019-03-31
英语翻译
使用生物燃料可以改善生态环境,缓解大气污染.随着工业化进程的迅猛发展,世界范围内汽车保有量快速增加,目前以汽油为动力的汽车尾气对大气的污染程度,已占所有大气污染源的60％左右.
以乙醇为例,乙醇是良好的车用燃料,除了它的燃烧性能可与汽油相比外,汽车发动机的压缩比可以提高,另外可使用较高的空气与燃料比例,燃烧完全.另一方面,减少汽车排放CO2量是防止地球气温升高的最有效的措施之一.生物乙醇的燃烧产物为水,并且根据检测,当汽油中掺入10％－20％乙醇时,这种混合燃料排出的尾气完全可以符合加利福尼亚州严格的空气污染标准要求.燃料乙醇的使用,对大气污染日益严重的趋势可起到缓解作用.
据检测,汽油加入10％的变性燃料乙醇后,可使汽油辛烷值提高3％,含氧量增加3．5％,可使汽车有害尾气排放总量减少33％以上,大大改善汽油的使用性能,使燃烧更彻底.
主要是翻译第二段就好~
优质解答
for example, ethanol is a good vehicle fuel, in addition to its combustion performance can be compared with gasoline, the car engine's compression ratio can be improved, the other can use a higher proportion of air and fuel, burning completely. On the other hand, the amount of CO2 to reduce vehicle emissions to prevent global warming is the most effective measures. Bioethanol combustion product is water, and according to testing, when the gasoline mixed with 10% -20% alcohol, this mixed fuel gas discharge can meet the strict California air pollution standards. The use of fuel ethanol, the growing trend of air pollution may play a role in mitigation.
for example, ethanol is a good vehicle fuel, in addition to its combustion performance can be compared with gasoline, the car engine's compression ratio can be improved, the other can use a higher proportion of air and fuel, burning completely. On the other hand, the amount of CO2 to reduce vehicle emissions to prevent global warming is the most effective measures. Bioethanol combustion product is water, and according to testing, when the gasoline mixed with 10% -20% alcohol, this mixed fuel gas discharge can meet the strict California air pollution standards. The use of fuel ethanol, the growing trend of air pollution may play a role in mitigation.