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Chemical analyses showed that the former was characterized by higher SiO2, K2O and lower A12O3, TiO2 than the later, as well as the content of Fe varying on a great range with the deposit-forming parent racks and weatering conditions.
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其结果表明，风化型高岭土的化学成分一般属硅高铝低型，钾含量偏高，钛含量低，铁含量则随成矿母岩和风化条件的不同波动范围大，矿物组成主要为结晶度较差的高岭石、水云母和石英，以及极少量的管状埃洛石。 |
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Chemical analysis of water yields hydrogen and oxygen.
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水经化学分解会产生氢和氧。 |
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Chemical analysis using spectrometer and chemical mathod at the same time to ensure impurities are within specification.
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用光谱和化学法同时进行化学成份分析确保化学成份在控制范围。 |
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Chemical and physical properties of itaconic acid are introduced. 2 Kinds of production methods, i.e., fermentation and chemical synthesis, its applications and research progress in medicine, water treatment and polymers are summarized.
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摘要介绍了衣康酸的物理化学性质，叙述了衣康酸的2种生产方法（发酵法和化学合成法），及其在医药、水处理和聚合物等方面的应用和研究进展。 |
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Chemical biology and diversity-oriented organic synthesis make possible the systematic exploration of biology and artificial transcription factors be used as a probe for the discovery of new insights into life processes.
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化学生物学和结构多样性有机合成使系统研究生物学成为可能，人工转录因子可以用作探针来发现生命过程中新的奥秘。 |
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Chemical constituents of persimmon leaves and antimicrobial activities were studied.
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摘要对柿叶的化学成分进行了定性分析和抗菌活性的研究。 |
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Chemical decomposition induced by light or other radiant energy.
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光分解，光解作用由光或其它光源引起的化学分解 |
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Chemical dependency can result from many things: alcohol, caffeine , illegal drugs like cocaine , legal drugs like pain killer s.
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很多东西会导致化学依耐性的产生：酒精、咖啡因、非法药品，如可卡因，合法药品，如止痛片。 |
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Chemical dependency can result from many things: alcohol, caffeine, illegal drugs like cocaine, legal drugs like pain killers.
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许多东西包括酒精，咖啡因，类似可卡因的非法药物及类似止痛片的合法药物都会招致药物依赖。 |
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Chemical engineering encompasses its conceptual origins in Great Britain,subsequent struggle for survival in the United States,and concludes with a cornucopia of contributions made in this century.
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中文：化学工程的概念起源于英国，继而在美国开始立足发展，最后在本世纪成为一门有重大贡献的学科。 |
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Chemical fertilization , fro example , helps to produce better crops , but is harmful to the environment .
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例如，化学施肥有助于提高粮食产量，但对环境有害。 |
