The state allotted them large quantities of chemical fertilizer.
国家给他们调拨了大量化肥。
Big quantities of quicklime are used to convert sodium carbonate into sodium hydroxide the key chemical reagent in this process.
采用了大量的生石灰来把碳酸钠转换成氢氧化钠，它是这个过程中。
Phenolphthalein: This chemical is an organic dye that is toxic in large quantities.
酚酞：这个化学药品是一个有机染料，大剂量是有毒的。
Chocolate contains theobromine, a chemical that is toxic to dogs in large enough quantities.
巧克力包含了可可碱，这种化学物质达到一定数量后，会使得狗狗中毒。
Water chemists study the chemical composition of seawater. They also analyze the types and quantities of pollutants entering ocean waters.
海洋化学家们研究海水的化学成分，他们还分析流入大海的污染物的种类和数量。
The rest of the chemical elements occur in only minor or trace quantities.
其余的化学元素仅以少量或微量出现。
Chemical factories consume and discharge large quantities of water, which the lake provided and absorbed.
化工厂消耗和排放了太湖的大量的水。
A chemical produced in comparatively small quantities and in a relatively pure state. Pharmaceutical and biological products, perfumes, photographic chemicals, and reagent chemicals are examples.
产量相对较少和较纯态的化学品，例如医药和生物制品、香料、照相药品和试剂化学品。
Additives are chemical substances which, when used in small quantities, improve product properties such as scratch resistance or surface gloss.
只需使用少量化学助剂，产品性能就能获得改善，如抗划伤性，提高表面光泽度。
Additives are chemical substances which, when used in small quantities, improve product properties such as scratch resistance or surface gloss.
只需使用少量化学助剂，产品性能就能获得改善，如抗划伤性，提高表面光泽度。
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