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- The situation of the treatment of impure acid produced from flue gas from the non-ferrous metals refining was introduced.Different disposing methods were compared and evaluated. 摘要介绍了有色冶炼尾气净化中产生的污酸处理现状，并对去除其中重金属及氟的方法进行了比较和评价。
- The Treatment of Impure Acid in the Production of Vitriol from Flue Gas 烟气制酸中的污酸处理方法
- In some religions pork is considered impure. 某些宗教认为猪肉是亵渎的。
- The air of a big city is often impure. 大城市的空气往往是污浊的。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- Platinum, especially as found naturally in impure form. 天然铂铂，尤指自然界中发现的以不纯的形式存在的铂
- She dropped acid in high school. 她高中时代服迷幻药。
- The metal is fretted with the acid. 金属被酸腐蚀。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- The acid has eaten through the metal cover. 酸已把金属盖子蚀穿了。
- In some religions, pork is considered impure. 某些宗教认为猪肉是亵渎的。
- The worker's overalls were badly burned by acid. 这位工人的工作装被酸腐蚀得很厉害。
- Impure drinking water is a cause of disease. 不洁的饮用水是引发疾病的一个原因。
- An acid can react with a base to form a salt. 酸可以和碱起反应而生成盐。
- To process(impure metal) by puddling. 通过搅炼对（不纯净的金属）进行加工
