quality of gasoline

As the automobile exhaust is one of the biggest pollutant source, improving the quality of gasoline is imperative under this situation.

由于汽车尾气排放是最大的污染源之一，提高汽油质量势在必行。

Octane number is of main quality indexes for gasoline.

辛烷值是汽油质量的主要指标之一.

Considering the inferior quality of domestic motor gasoline and the large proportion of FCC gasoline in motor gasoline, several measures for upgrading FCC gasoline were particularly explored. The role of FCC process and the associate technologies in gasoline upgrading were also expounded.

针对我国车用汽油质量偏低、FCC汽油所占比例大的状况，重点探讨了提高FCC汽油质量的几项措施，论述了FCC及其相关工艺在提高汽油质量中的作用。

It researches and builds the blending relation models of some main quality indexes of gasoline . 4.

研究建立了汽油主要质量指标的调合关系模型.

For making the atmosphere quality better, sulfur content of gasoline product must be reduced.

为改善大气质量, 就必须降低成品汽油的硫含量.

Using gasoline additives including octane improvement agents ( anti-knock agents) is one of the most efficient and economical way to improve the gasoline quality.

使用汽油添加剂包括汽油辛烷值改进剂（抗爆剂）是提高车用汽油质量最有效和最经济的方法。

The investigation and analysis on the emission level of 133 in-use light-duty gasoline-fuelled vehicles and the quality of gasoline fuel in China are carried out with some suggestions for in-use vehicle emission control proposed.

对我国市场上133辆在用轻型汽油车进行了工况法和双怠速排放及市售燃油质量调查与分析，并提出了对在用车排放管理的几点建议。