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乙醇和汽油的易燃性和高热值使之成为应用广泛的优质燃料。在被用做汽车燃料使用时,欲输出相同的动力,所需二者的用量不等;因不完全燃烧均可产生污染性物质,虽因其组成、结构和性质的差异使之分别燃烧后产生的有害物质的多少与种类有所差别,但经计算这种差别实际上不是很明显。人教版《义务教育课程标准实验教科书化学九年级(上册)》中的“在汽油中加入适量乙醇作为汽车燃料(车用乙醇汽油),可……减少汽车尾气的污染”的说法是不准确的。
The flammability and high calorific value of ethanol and gasoline make it a widely used, premium fuel. When it is used as a fuel for automobiles, it is necessary to output the same power and the amount of the two is different. Because of incomplete combustion, pollutants can be produced. After being burned separately due to the differences in composition, structure and properties The amount of harmful substances produced varies from species to species, but the difference calculated is not really obvious. People’s Education Edition “compulsory education curriculum standard experimental textbook chemistry ninth grade (first volume)” in the “add gasoline in gasoline as a vehicle fuel (car ethanol gasoline), ... ... to reduce the pollution of automobile exhaust ” argument is inaccurate.