| 单词 | 构成成分 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔black box〕A device or theoretical construct with known or specified performance characteristics but unknown or unspecified constituents and means of operation.黑箱：一种仪器或理论学说，有已知或特定的性能特征但未知或不确定指出的构成成分或操作方法美国传统〔break down〕Over time, the protein in the eggshell breaks down into its constituent amino acids.时间久了，蛋壳中的蛋白质就会分解为其构成成分氨基酸。柯林斯高阶〔clay mineral〕Any of various hydrous silicates that have a fine crystalline structure and are components of clay.粘土矿物：一种有精细晶体结构的含水硅酸盐，是粘土的构成成分美国传统〔component〕Any of the minimum number of substances required to specify completely the composition of all phases of a chemical system.组分：任一能完全区分各种化学系统所有构成成分所必需的最少量物质美国传统〔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〔freezing point〕The temperature at which a liquid of specified composition solidifies under a specified pressure.凝固点：有特定构成成分的液体在特定压强下凝固时的温度美国传统〔line spectrum〕A spectrum produced by a luminous gas or vapor and appearing as distinct lines characteristic of the various elements constituting the gas.线型光谱：由被照亮的气体或蒸汽构成的光谱，出现表明气体为各种构成成分的清晰可辨的线美国传统〔stony-iron meteorite〕A relatively rare type of meteorite consisting of approximately equal amounts by weight of nickel-iron and silicate minerals.铁石陨石：相对稀有的陨石，构成成分中的镍铁矿和硅酸盐矿的重量大致相同.美国传统〔tungsten carbide〕An extremely hard, fine gray powder whose composition is WC, used in tools, dies, wear-resistant machine parts, and abrasives.碳化钨：一种十分坚硬的灰色细粉末，其构成成分是碳化钨，用于工具、模具、耐磨损的机器部件和磨具中美国传统〔zone〕Geology A region or stratum distinguished by composition or content.【地质学】 地带：以构成成分和含量来区别的区域或地层美国传统We examined the rock to find out its composition. 我们检验了这一石块，想弄清它的构成成分。译典通 |
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