The principle,influence fectors and harmfulness of the water body eutrophia in oxidation pond were introdneed in this paper.

针化塘水体富营养化,绍了化塘水体富营养化的发生机理、影响因素及其危害,探讨了防治施,并展望了未来的研究趋势。

The new consensus in 2002 shall be devoid of harmfulness, devoid of abusiveness devoid of warfare, and filled with peace.

在2002年，新一致实相将是无害、无暴力、无战争，并被和平所充盈。

This paper briefs the industrial usages i and harmfulness of cyclopentanone and cyclohexanone, and reviews the research progresses in microbial degradation of cyclopentanone and cyclohexanone.

摘要绍了环戊酮和环己酮的应用及危害，综述了目前国内外在环戊酮和环己酮微生物降解的研究进展。