结果表明,盐酸、硫酸锌、石灰等无机化学药剂和淀粉有机药剂能够明显改善洗矿效果,而分散剂类药剂不能改善洗矿效果。
The results have shown that inorganic agents such as hydrochloric acid, zinc sulfate and lime and the organic reagent starch can remarkably improve the washing effect while dispersant reagent can't.
农药:现如今有很多的化学药剂可用于杀灭虫害,但是有机农业更加注重预防,而不是治理虫害。
Pesticides: Plenty of pest-killing chemicals are available, but organic farms focus more on prevention than treatment.
天然和合成纤维、大部分的燃料、药剂和塑料制品都是有机化合物。
Natural and synthetic fibres and most fuels, drugs, and plastics are organic.
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