| 单词 | chemical composition |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔CONSIST OF〕What is the chemical composition of lava? 熔岩的化学成分是什么？朗文写作活用〔allomerism〕Consistency in crystalline form with variation in chemical composition.异质同形现象，异质同晶现象：晶体形式相同但化学组成不同美国传统〔composition〕Irradiation changes the chemical composition of a spice.辐照会改变香料的化学成分。牛津搭配〔composition〕Some minerals have complex chemical compositions.有些矿物的化学成分很复杂。朗文当代〔cosmochemistry〕The science of the chemical composition of the universe.宇宙化学：研究宇宙的化学组成的科学美国传统〔cytochemistry〕The branch of biochemistry that deals with the study of the chemical composition and activity of cells.细胞化学：生物化学的一个分支，它从事研究这种化学构成成分和细胞活动美国传统〔histochemistry〕The branch of science that deals with the chemical composition of the cells and tissues of the body.组织化学：研究身体细胞和组织的化学构成的一门科学美国传统〔isomorphism〕A close similarity in the crystalline structure of two or more substances of similar chemical composition.同晶性：两种或更多种具有相似化学组成的物质的晶体结构间的近似性美国传统〔metasomatism〕The process by which the chemical composition of a rock is changed by interaction with fluids; replacement of one mineral by another without melting.交代变化，换质（作用）：岩石的化学成分通过与液体相互作用而发生变化的过程；一种矿物不经熔化被另一种矿物替代美国传统〔neurochemistry〕The study of the chemical composition and processes of the nervous system and the effects of chemicals on it.神经化学：研究神经系统的化学组成和神经系统与化学影响的过程的科学美国传统〔paramorphism〕Structural alteration of a mineral without change of chemical composition.同质异晶（现象）：一种化学成分不改变的矿物结构的变形美国传统〔petrochemistry〕The branch of geochemistry that deals with the chemical composition of rocks.岩石化学：研究岩石的化学成分的地球化学的分支美国传统〔rubber〕Any of numerous synthetic elastic materials of varying chemical composition with properties similar to those of natural rubber.合成橡胶：具有不同的化学成分的各种有弹性的合成原料，其属性与天然橡胶类似美国传统〔x-disease〕Hyperkeratosis of cattle caused by ingestion of a toxic substance, especially one of uncertain origin or chemical composition.X病：由于摄取某种有毒物质而引起的牛的皮肤角化过度，尤指一种起因和化学成分不明的物质美国传统 |
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