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- biotic index of pollution 污染生物指数
- A person's face is often an index of his mood. 一个人的脸部表情常常反映这个人的情绪。
- A new biotic index, the species pollution value (SPV) and the community pollution value(CPV), based on chemical parameters is presented. 依据水质化学参数和原生动物群落参数建立了一种新的生物指数：种类污染值（SPV）和群落污染值（CPV）。
- Detecting the density of pollutant gas is one of the important applications of lidar.The minimum detectable concentration is a key index of lidar. 探测大气中污染气体的浓度是激光雷达的一个重要应用方面,最小可探测浓度是衡量一个雷达系统的重要指标。
- Furthermore,biological assessment of water pollution and eutrophic condiction was conducted by using the method of “indicator organism”,“biotic index”and“R. 报道了东平湖轮虫群落结构特征及数量的季节变动，并依据调查结果，采用“指示生物法”、“生物指数法”和“R。
- We now come to the question of pollution. 我们现在开始谈污染问题。
- Some sources of pollution have been curbed. 对原有的一些污染源进行了治理。
- The increasing sale of luxury goods is an index of the country's prosperity. 奢侈商品销售量日增是该国繁荣的标志。
- There's a lot of pollution in the air here. 这里的空气有大量的污染物质。
- Well,let's turn to the problem of pollution. 那么，我们讨论污染问题吧。
- Unclear waste is a kind of pollution. 核废弃物是一种污染。
- The face is the index of the mind. [谚]脸是心灵的镜子。
- What kind of pollution is the most risky? 什么样的污染是最危险的?
- Color is commonly an index of ripeness or spoilage. 色泽一般是成熟和败坏的标志。
- Any kind of pollution will do harm to health. 任何污染都会危害健康。
- I'd like to clear up the point of pollution. 我想弄清楚污染的问题。
- Busy factories are an index of prosperity. 忙碌的工厂是繁荣的表徵。
- Retrospect and prospect of pollution ecology. 污染生态学研究的回顾与展望。
- Sludge biotic index (SBI), based on the microfauna associated with activated sludge mixed liquor, has been devised to monitor activated sludge plant performance. 污泥生物指数(SBI)由对活性污泥混合液中微型动物群落结构的分析得出,用于评价活性污泥的运转效能。
- On the subject of pollution, it's a global problem. 有关污染,这是个全球性问题。
