Rivers clean themselves quickly when pollution is not too great, so long as the water is moving and in contact with plants, soil and rock.
在污染不太严重时，河水只要是流动的而且能接触植物、土壤、岩石，自身很快就会变清洁。
Aiming at serious pollution and no good biochemical quality in refinery alkalinity waste liquid, using hydrolysis-contact oxidation process to treat it.
针对炼油废碱液污染浓度高、可生化性差的特点，采用水解与接触氧化组合工艺进行处理。
The rotor has no contact with any parts in operation. There is no pollution. The operation is reliable, continuous, stable with strong suction, low noise.
叶轮运转不与任何零部件接触，没有污染，工作可靠，吸力强劲、连续工作、噪音低、工作平稳。
Because the air doesn't contact with the liquid layer, the conductive air venous infusion apparatus can prevent and alleviate the pollution of infusion liquid due to insoluble particles in it.
导气式静脉输液器因空气不与液体层接触，在减轻空气中不溶性微粒对输入液的污染方面有着显著效果。
Huabao is a pollution free insecticide which has strong contact poisoning function on aphids, cicadas, mites and scales.
花保是一种无公害的触杀剂，对多种刺吸式口器害虫如蚜虫、蝉、红蜘蛛、介壳虫等有较强的触杀作用。
Huabao is a pollution free insecticide which has strong contact poisoning function on aphids, cicadas, mites and scales.
花保是一种无公害的触杀剂，对多种刺吸式口器害虫如蚜虫、蝉、红蜘蛛、介壳虫等有较强的触杀作用。
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