| 单词 | 结晶体 |
| 释义 | 〔quinone〕Any of a class of aromatic compounds found widely in plants, especially the yellow crystalline form, CO(CHCH)2CO, used in making dyes, tanning hides, and photography. 醌，苯醌：一种芳族化合物，广泛存在于植物中，尤指其黄色的结晶体形式CO(CHCH)2CO，用在制造染料、鞣制皮革和摄影中 〔arsenic〕Symbol As A highly poisonous metallic element having three allotropic forms, yellow, black, and gray, of which the brittle, crystalline gray is the most common. Arsenic and its compounds are used in insecticides, weed killers, solid-state doping agents, and various alloys. Atomic number 33; atomic weight 74.922; valence 3, 5. Gray arsenic melts at 817°C (at 28 atm pressure), sublimes at 613°C, and has a specific gravity of 5.73. See table at element 符号 As 砷：一种有剧毒的金属元素，有黄、黑、灰三种同素异形体，其中质脆，结晶体的灰色形体最为常见。砷及其化合物用于杀虫剂，除草剂，固体添加剂和各种合金。原子序数33；原子量74.922；化合价3，5。灰色砷熔点为817°C（在28气压时），613°C升华，比重5.73 参见 element〔hyoscyamine〕A poisonous white crystalline alkaloid, C17H 23NO 3, isometric with atropine and having similar uses but more potent effects. 茛菪素：一种有毒的白色结晶体的生物碱，化学分子式为C17H 23NO 3，与阿托品有等轴晶，有相似的用途，但效力更大 〔brucine〕A poisonous white crystalline alkaloid, C23H 26N 2O 4, derived from the seeds of nux vomica and closely related plants and used to denature alcohol. 番木鳖碱：有毒的白色结晶体状生物碱，C23H 26N 2O 4，得自马钱子的种子中，同植物关系极其密切并可用来使酒精变性 〔scapolite〕-lite [stone (from the prismatic shape of its crystals)] -lite[石头（来自其结晶体的棱柱形状）] 〔Karle〕American chemist. He shared a 1985 Nobel Prize for developing methods to determine the molecular structure of crystals.卡利，杰罗姆：(生于 1948) 美国化学家，因发展了测定结晶体中分子结构的方法而获得1985年度的诺贝尔奖〔pyroelectricity〕Generation of electric charge on a crystal by change of temperature.热电：由于温度的变化而在结晶体上发生的电流的产生〔cholesterol〕A white, crystalline substance, C27H 45OH, found in animal tissues and various foods, that is normally synthesized by the liver and is important as a constituent of cell membranes and a precursor to steroid hormones. Its level in the bloodstream can influence the pathogenesis of certain conditions, such as the development of atherosclerotic plaque and coronary artery disease. 胆固醇：一种白色结晶体物质，C27H 45OH，发现于动物细胞组织和多种食物中，一般由肝合成，作为细胞膜的组成部分是极为重要的，并且是类固醇荷尔蒙的前驱。在血流中的程度能影响特种疾病的发病，如动脉粥样硬化病和冠状动脉疾病的发展 〔acicula〕A slender, needlelike part or structure, such as the spines or bristles of some plants and animals and the crystals of certain minerals.针，刺：针状物，如动物和植物上的脊椎或刺毛和某些矿物的结晶体〔lattice〕A regular, periodic configuration of points, particles, or objects throughout an area or a space, especially the arrangement of ions or molecules in a crystalline solid.点阵：一定范围内由点、微粒或物体组成的规则的有周期的结构，尤指结晶体的离子或原子排列 |
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