composite pollution造句
例句與造句
- Collecting a large number of atmosphere , soil and irrigation water , using the method of monomial and composite pollution exponent , the general situation of grain early warning is studied and a grain early warning system is built
本文從糧食生產(chǎn)過程中的大氣、土壤及農(nóng)田灌溉水出發(fā),運用單項污染指數(shù)與綜合污染指數(shù)相結合的評價方法進行糧食生產(chǎn)的預警研究,構建了糧食本底安全預警系統(tǒng)。 - It's difficult to find composite pollution in a sentence. 用composite pollution造句挺難的