...污染; 环保 中图分类号: X 506 文献标识码: A 文章编号: 167121556 ( 2003) 0220043202① [gap=3797]Key words: d rilling w ell; m ud; po llu t ion; environm en ta l p ro tect ion ..
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Chang’an has emerged that heavy metal pollution in soil.
表明长安区表层土壤已出现重金属污染。
参考来源 - 西安市长安区土壤重金属积累和质量评价研究The size and construction cost of the tower can be decreased while Y-strings are applied in heavy pollution area.
Y型绝缘子串用于重污秽地区输电线路时,可减小杆塔尺寸,降低工程造价。
参考来源 - 直流输电线路Y型绝缘子串污闪特性研究Automotive exhaust emissions have been the main source of air pollution.
汽车尾气排放污染已是大气污染的主要来源。
参考来源 - 汽油发动机空燃比闭环控制及监测系统For the insulators with simple shape the exponent n isnot influenced by the pollution degree, but for the insulators with complex shape the value nwas effected by the pollution degree.
试验结果表明，上述公式中的指数n在交流电压下的数值大于直流电压。 对于形状简单的绝缘子n值不受污秽程度影响，对于形状复杂的绝缘子n值受污秽程度的影响。
参考来源 - 期刊学术社区·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： befoulment defilement
同义词： contamination
以上来源于: WordNet
N-UNCOUNT Pollution is the process of polluting water, air, or land, especially with poisonous chemicals. 污染
The fine was for the company's pollution of the air near its plants.
公司被罚款是因为它的工厂污染了周围的空气。
N-UNCOUNT Pollution is poisonous or dirty substances that are polluting the water, air, or land somewhere. 污染物
The level of pollution in the river was falling.
该河流受污染的程度其时正在降低。
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