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- 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. 本文從糧食生產過程中的大氣、土壤及農田灌溉水出發,運用單項污染指數與綜合污染指數相結合的評價方法進行糧食生產的預警研究,構建了糧食本底安全預警系統。
- We should use anthracite to avoid air pollution. 我們應該使用無煙煤以防止空氣污染。
- Pollution control has cleared the air. 污染管制已凈化了空氣。
- Man is fighting a battle against pollution. 人類正在與污染作鬥爭。
- Pollution is still very much a live issue. 污染現象仍然是當前的大問題。
- The soil becomes more and more acidic as pollution mounts up. 隨著污染的加劇,土壤的酸化越來越嚴重。
- A clamor in the press for pollution control. 在報紙上對污染控制的呼籲
- Water pollution imperils all kinds of marine life. 水質污染危及所有海洋生物。
- Pollution has stripped the trees of their foliage. 污染剝光了這些樹的葉子。
- We have freed the lake from pollution. 我們已經清除了該湖的污染。
- Many young people could not resist the spiritual pollution. 很多年輕人不能抵制精神污染。
- It will cause pollution and the destruction of our seas and oceans. 這會引起污染,破壞我們的海洋和江河。
- We are sad about the pollution of our beaches with oil. 我們很痛心石油對我們海灘的污染。
- Many people are concerned about the pollution of the environment. 許多人都關心環境污染問題。
- The pollution is out of hand and becomes very dangerous. 污染失去控制,十分危險。
- Being a composite of more than one color or mixed with black or white. 混合的一種顏色以上的混合物的或夾雜黑色或白色的
- She was horrified by all the pollution on the beach. 她對海灘上的污染感到震驚。
- CN Composite Number and Name data type. 代碼與文字合成資料型態。
- Exhaust gas has been incriminated in air pollution in cities. 廢氣已過視為城市空氣污染的原因。
- People are becoming increasingly worried about pollution. 人們對污染越來越感到憂慮。