1) low toxic and nontoxic process
低毒、无毒工艺
2) Non toxic technique
无毒化工艺
3) thin smoke and non toxicity
低烟无毒
4) sterilizing technique
消毒工艺
1.
Through comparison and analysis of various current sterilizing techniques, this paper puts forward some methods for treating secondarily polluted water, and explains by using actual engineering examples the rationalization of treating secondarily polluted water with chlorine dioxide and ultraviolet sterilizing techniques.
通过对当前各种消毒工艺的比较分析,提出解决二次水污染的方法,以工程实例说明运用二氧化氯、紫外线消毒工艺来处理二次污染水的合理性。
6) low and nontoxic pesticides
低、无毒农药
补充资料：低都儿低
1.低而又低，很低。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条