相关英语单词
双语例句
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Carbon is an element,while carbon dioxide is a compound.
碳是一种(化学)元素,而二氧化碳则是一种化合物。
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When two or more elements combine and form a compound, a chemical change takes place.
当两种或两种以上的元素结合形成化合物时, 发生化学变化。
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aromatic compounds
芳香族化合物
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The carbohydrate matter that is assimilated into the blood stream is used for energy.
被吸收进血液的碳水化合物用作能量.
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It may be composed of allelochemics such as alkaloids or terpenes.
它可以由异种化合物例如生物碱或萜稀组成.
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Multiply unsaturated compounds are usually best named by the IUPAC nomenclature.
多重不饱和化合物一般最好用IUPAC命名法来命名.
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Consider phthalates, those chemicals that help preent makeup from smudging.
如酞酸盐, 这些化合物用于帮助化妆品防止脱落.
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Carbohydrate, protein and fat suppled 69.6 % ~70.9 % , 11.6 % ~12.4 % and 17.5 % ~18.0 % of calories respectively.
能量来源的69.6%~70.9%为碳水化合物, 11.6%~12.4%为蛋白质,17.5%~18.0%为脂肪,其中来自脂肪的能量偏低,应适当提高.
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All compounds are unities of opposites differing in nature.
化合物都是不同性质的东西的对立统一.
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Are they metabolized to more toxic compounds.
它们是否被代谢成毒性更强的化合物?