Wilfley's Model A7NM pump handles liquids containing aggressive, highly corrosive chemicals such as hydrochloric acid.
WilfleyA7NM型泵可处理如盐酸液体等含有侵蚀性，高腐蚀性的化学品。
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.
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。
Some phosphoric acid production techniques are introduced, such as nitric acid technique, hydrochloric acid technique, sulfuric acid technique, which use phosphate rock as raw material.
介绍了以磷矿为生产原料的硝酸法、盐酸法、硫酸法等湿法磷酸生产工艺，并对其工艺进行了说明和比较。
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