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- Preventing pollution by automobile emission ? 防治机动车排气污染物污染。
- Preventing pollution by automobile emission? 防治机动车排气污染物污染。
- pollution by vanadium 钒污染
- The river has been polluted by waste products from the factory. 这条河已经受到工厂排放的废料的污染。
- That is the name given to the emerald green variety from Tanzania, coloured by vanadium and chrome. 产于坦桑尼亚。它的颜色是由钒元素和铬元素引起。
- Less pollution by decease of film and water waste. 5. 4.;降低废片及废水造成的环境污染。
- In the die steels of CrMoSoV series, the precipitation was formed mainly by vanadium carbides. 在铬钼硅钒系合工钢中,无论在何种温度下,均以碳化钒的析出为主。
- The area will be free of pollution by the year 2006. 到2006年,这个地区将没有污染。
- Immediate steps should be taken to prevent pollution by excreta. 要立即采取措施防止排泄物污染。
- Reduces air pollution by minimizing the discharge of unburned hydrocarbon . 将未燃烧的碳氢化合物含量降至最低,减少了空气污染。
- Rice straw is recycled for reuse to avoid creating pollution by burning it. 避免燃烧稻草造成污染,稻草也要回收再利用。
- The fiver has been polluted by factory waste. 这条河流被工厂废物所污染。
- The water was polluted by refuse from the factory. 工厂所排放的废物弄脏了水。
- The air was polluted by factory smoke. 空气被工厂冒的烟污染了。
- The river has been polluted by factory waste. 这条河流被工厂废物所污染。
- It is based on the reaction between Evans blue and KBrO3 is catalysed by vanadium in hot dilute H2SO4 solution and in the presence of ascorbic acid and the diminution in absorbance of the system permits vanadium to be determined. 它基于在热的稀H_2SO_4溶液中,有抗坏血酸存在时,依文思蓝与KBrO_3反应受钒的催化且吸光度降低与钒量相关。
- The rapid growth of its population,industry and commerce remain at the root of pollution by human activities. 人口激增,工商业蓬勃发展,这些人类活动正是污染的根源。
- This Law shall apply to the prevention and control of pollution by liquid waste and gaseous waste in containers. 液态废物和置于容器中的气态废物的污染防治,适用本法。
- Reducing pollution by, say, 90 percent may be relatively inexpensive for some plants but very costly for others. 减少污染,比如说90%25,对某些工厂相当便宜,而对另外一些工厂却是相当昂贵。
- Sun too penetrates into privies, but is not polluted by them. 阳光也照进厕所,但不会遭到污染。