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- The key pollution indicators are ammonia nitrogen and BOD. 主要污染指标是氨氮和生化需氧量。
- The major pollution indicators are dissolved oxygen, potassium permanganate, BOD, volatile phenol and petroleum. 主要污染指标为溶解氧、高锰酸盐指数、生化需氧量、挥发酚和石油类。
- The major pollution indicators in the Yangtze River system are petroleum and ammonia nitrogen. 长江水系的主要污染指标是石油类、氨氮和高锰酸盐指数。与上年相比,水质持平。
- environmental pollution indicator 环境污染指示剂
- Keywords Bdellovibrio Water pollution Indicator; 蛭弧菌;水污染;指示菌;
- The major pollution indicators are dissolved oxygen,potassium permanganate,BOD,volatile phenol and petroleum. 主要污染指标为溶解氧、高锰酸盐指数、生化需氧量、挥发酚和石油类。
- Key Pollution Indicator of Dian Lake in 2001 Unit: mg/l 2001年度滇池湖体主要污染指标值 单位:毫克/升
- We should use anthracite to avoid air pollution. 我们应该使用无烟煤以防止空气污染。
- Pollution control has cleared the air. 污染管制已净化了空气。
- Man is fighting a battle against pollution. 人类正在与污染作斗争。
- Pollution is still very much a live issue. 污染现象仍然是当前的大问题。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧,土壤的酸化越来越严重。
- A clamor in the press for pollution control. 在报纸上对污染控制的呼吁
- Water pollution imperils all kinds of marine life. 水质污染危及所有海洋生物。
- Pollution has stripped the trees of their foliage. 污染剥光了这些树的叶子。
- We have freed the lake from pollution. 我们已经清除了该湖的污染。
- water pollution indicating organism 水污染指示生物
- environmental pollution indicators 环境污染指示剂
- Timeliness of an indicator is also significant. 指标的及时性也不容忽略。
- Many young people could not resist the spiritual pollution. 很多年轻人不能抵制精神污染。