常見例句雙語(yǔ)例句When exposed to the air for more than 60 days, the product will turn into water with oxygen molecules and there will be no secondary pollution.產(chǎn)品放置于自然環(huán)境中，60日后與氧分子結(jié)合又自動(dòng)轉(zhuǎn)化成清水，不會(huì)造成二次污染。www.green-force.cnThe advantages of this technology are simple process flow, compact installation, no secondary pollution, low cost and wide range of application, etc.該技術(shù)具有流程簡(jiǎn)單、占地面積小、無(wú)二次污染、費(fèi)用低、應(yīng)用范圍廣等特點(diǎn)。Controlling environment pollution by biotechnology has the advantages of low cost and no secondary pollution.應(yīng)用生物技術(shù)治理環(huán)境污染，具有費(fèi)用低、不產(chǎn)生二次污染的優(yōu)點(diǎn)。 返回 no secondary pollution