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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。
- In the experiments,taking reagent JY No.1 and copper sulfate as activated reagent of copper,the environmental pollution by ... 试验采用JY-1号和硫酸铜作铜活化剂,既消除了氢氰酸对环境的污染,又抑制了铅。
- 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。
- pollution by copper 铜污染
- 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。
- 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。
- A writer has found a small deposit of manganese ore and rock specimens flecked with uranium or stained green by copper. 一名作家还发现了一个不大的锰矿堆积体和一些粘染有铀痕迹或者带着铜绿斑痕的矿石标本。
- The electrolyte was purified by copper arsenite to effectively remove Sb and Bi impurities in the copper electrolyte. 电解液净化是铜电解精炼必不可少的重要工序,它直接关系到阴极铜的品质。
- The synthetic conditions of acetals and ketals catalyzed by copper sulfate were studied. 研究了硫酸铜催化缩醛(酮)的合成条件,考察了硫酸铜催化剂的使用性能;
- 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。
- "Are the etcher conveyor speeds defined and documented by copper weight/thickness? 蚀刻机运作速度是否有规定并且有文件规定铜重量/厚度?"
- 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。
- Study on toxicity test of benthic fauna, Bullacta exarata, polluted by copper in the tidal flat of Changjiang Estuary 长江口滨岸潮滩底栖动物泥螺受铜污染的毒理学研究
- Photocytotoxicity Characteristics of Three Photosensitizers Induced by Copper Vapor Laser Irradiation[J]. 引用该论文 刘慧龙;刘凡光;顾瑛;赵井泉;马江华;曾晶;潘玉明.
- 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。
- A writer has found a small deposit of manganese orerock specimens flecked with uranium or stained green by copper. 一名作家还发现了一个不大的锰矿堆积体和粘染有铀痕迹带着铜绿斑痕的矿石标本。
- The air was polluted by factory smoke. 空气被工厂冒的烟污染了。