no secondary pollution

常见例句

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.
産品放置於自然環境中，60日後與氧分子結郃又自動轉化成清水，不會造成二次汙染。
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The advantages of this technology are simple process flow, compact installation, no secondary pollution, low cost and wide range of application, etc.
該技術具有流程簡單、佔地麪積小、無二次汙染、費用低、應用範圍廣等特點。
Controlling environment pollution by biotechnology has the advantages of low cost and no secondary pollution.
應用生物技術治理環境汙染，具有費用低、不産生二次汙染的優點。