yán / jiū / rén / yuán / zhèng / zài / gǎi / jìn / niàng / rè / wù / de / chǔ / lǐ / fāng / fǎ / yǐ / jiǎn / shǎo / rán / shāo / shí / de / yì / wèi

研究人员正在改进酿热物的处理方法，以减少燃烧时的异味。

Researchers are improving methods for processing biological fuel to reduce odors during combustion.