The results revealed that copper pollution and strong acid were the major problems of this mine land.
研究表明，铜污染和强酸性是该矿山土地的最主要问题。
Further analysis indicated that external copper pollution was the major cause of the crack in the bent pipe.
进一步分析，认为外来铜污染是引起弯管开裂的主要原因。
The fact that copper pollution of laccaic acid in stick lac could not be avoided was concluded after considering its biological source and chemical nature.
从紫胶的生物来源和紫胶红色素的化学本质分析，紫胶原胶中紫胶红色素的铜污染是不可避免的。
Mining copper on this land will inevitably result in pollution and environmental disaster, since West Fredonia is home to several endangered animal species.
在这些地方采矿将会不可避免地导致污染和环境灾害，因为West Fredonia是很多濒危物种的栖居地。
Study on the dynamic accumulation rule that cadmium and copper accumulate in Pakchoi different portions by simulating pollution.
通过模拟污染，研究了镉和铜在小白菜中各部位的动态吸收规律。
Processes for extracting metals from the slurry and recovery rates of them, such as gold, silver, copper, antimony and bismuth, and measures of controlling arsenic pollution are discussed.
探讨了铅阳极泥中金、银、铜、锑、铋等金属回收方法与指标以及砷的污染防治措施。
The successful development of the aircraft will not only improve the quality of the recovery of copper, and prevent secondary pollution.
该机的开发成功不但提高了回收铜的质量，又防止二次污染。
The soil in copper-ore-tailings reservoir was compared with that in reference lands to find out the differences between them in physical and chemical natures and in heavy metals pollution.
通过合理选择不同对照地，从土壤的理化性质、被污染程度比较，为尾矿库复垦的土壤改良提供依据。
Through the investigation of copper foil's preservation condition, it was shown that the acid mist and corrosive gas pollution, temperature, humidity, UV have damage effects on copper foil.
通过调查铜箔保存现状，了解到各种酸雨雾和腐蚀性污染气体以及温度、湿度、紫外线等对铜箔有破坏作用。
The no pollution bright pickling passivation technique of copper parts introduced in this pa-per, has neither the toxic chromium containing materials nor nitrogen oxide pollution.
本文介绍的铜制件光亮酸洗钝化工艺，既无有毒的含铬物质，又无氮氧化物污染。
To abate the pollution of industrial waste gases, containing CO and organic hydrocarbons, a copper-rare earth oxide catalyst of monolithic form was developed.
研究了含铜-稀土氧化物的非贵金属蜂窝状催化剂，目的是用于含烃类工业废气的净化。
The molybdenum beneficiation milltailing, which can cause water-pollution, air-pollution and even the mud-rock flow disaster, is the main contamination in molybdenum(copper)mine.
前言：选矿尾砂是钼（铜）矿山的主要污染物，可能污染水源、成为沙尘源甚至泥石流灾难的隐患，矿山企业为此付出大量的人力、物力仍难以根治。
The molybdenum beneficiation milltailing, which can cause water-pollution, air-pollution and even the mud-rock flow disaster, is the main contamination in molybdenum(copper)mine.
前言：选矿尾砂是钼（铜）矿山的主要污染物，可能污染水源、成为沙尘源甚至泥石流灾难的隐患，矿山企业为此付出大量的人力、物力仍难以根治。
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