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- Sulphur can be used to make gunpowder. 硫磺可以用来制造火药。
- Sulphur was not identified as an element until1810. 1810年以前还没有认出硫是一种元素。
- sulphureous urea 含硫尿素
- This medicine smacks of sulphur. 这种药带有一点硫磺气味。
- A clathrate compound, such as urea. 包合物一种笼状化合物，如尿素
- Sulphur is a constituent of gunpowder. 硫是火药的组分。
- But 120 tons of urea is really a small one. 但120吨尿素确实是个小数目。
- Sulphur gases were emitted by the volcano. 硫磺气体由火山喷发出来。
- Sand, but blue as the flame of burning sulphur. 但是蓝得象是硫磺燃烧产生的火焰。
- Sulphur status, in general, is satisfactory. 硫的状况一般较好。
- Examples: Lithia, saline, and sulphur waters. 例如：含有氧化锂、盐、磺等物质的矿泉水。
- The calcium reacts with sulphur in the atmosphere. 钙与硫磺在空气中会发生反应。
- Government tender urea must submit price by 18th noon. 政府招标尿素，须于18日正午前报价。
- Sulphur glycerine can is purify tooth calculous? 磺甘油能去除牙结石吗?
- Allantoin is one of the important urea derivative products. 尿囊素是一种重要的尿素衍生产品。
- A kidney also takes urea and mineral salts out of the blood. 肾还排出血液中的尿素和无机盐。
- Urea is commonly used as the source of nitrogen in foliage sprays. 尿素作为氮素给源普遍地应用于叶面喷布。
- Excreting urea as the chief component of nitrogenous waste. 排尿素的作为含氮排泄物中主要成分的尿排泄的
- Sulphur was not identified as an element until 1810. 1810年以前还没有认出硫是一种元素。
- Increase of nitrogenous substances, especially urea, in the urine. 氮尿氮物质的增加，特别是尿里的尿素
