| 单词 | 主要成分 |
| 释义 | 〔chalcopyrite〕A yellow mineral, essentially CuFeS2, that is an important ore of copper. Also called copper pyrites 黄铜矿：一种黄色的矿物，主要成分为CuFeS2，一种重要的铜矿石 也作 copper pyrites〔salt〕A colorless or white crystalline solid, chiefly sodium chloride, used extensively as a food seasoning and preservative. Also called common salt ,table salt 盐：一种无色或白色结晶固体，主要成分是氯化钠，广泛用于食物调料和防腐剂 也作 common salt,table salt〔proline〕An amino acid, C4H 8NCOOH, that is found in most proteins and is a major constituent of collagen. 脯氨酸：氨基酸，化学式为C4H 8NCOOH，存在于大多数蛋白质中，是胶原蛋白的主要成分 〔witherite〕A white, yellow, or gray mineral, chiefly BaCO3. 毒重石，碳酸钡矿：白色、黄色或灰色的一种矿物，主要成分是BaCO3 〔melena〕A condition marked by black, tarry stool or vomit composed largely of blood that has been acted on by gastric juices, resulting from a hemorrhage along the digestive tract.黑粪症：由消化道大出血而引起的病症，其特征为排出黑色柏油样粪便或以经胃液分解之血液为主要成分的呕吐物〔celestite〕A white, red-brown, orange, or light blue principal strontium ore, essentially strontium sulfate, SrSO4, found in sedimentary rock. Also called celestine 天青石：白色、红棕色、橙色或浅蓝色的锶矿石，主要成分是硫酸锶，SrSO4，发现于沉积岩中 也作 celestine〔limestone〕A common sedimentary rock consisting mostly of calcium carbonate, CaCO3, used as a building stone and in the manufacture of lime, carbon dioxide, and cement. 石灰岩：一种普通沉积岩，主要成分为碳酸钙，CaCO3，用于建筑，并用于制造石灰、二氧化碳和水泥 〔ureotelic〕Excreting urea as the chief component of nitrogenous waste.排尿素的：作为含氮排泄物中主要成分的尿排泄的〔hydroxyl〕The univalent radical or group OH, a characteristic component of bases, certain acids, phenols, alcohols, carboxylic and sulfonic acids, and amphoteric compounds.羟基：单价原子团或羟团，是碱、一些酸、酚、醇、羧酸和硫酸及两性化合物的主要成分〔staurolite〕A brownish to black mineral, chiefly (FeMg)2Al 9Si 4O 23(OH), often having crossed intergrown crystals and sometimes used as a gem. 十字石：一种由褐色到黑色的矿物，主要成分(FeMg)2Al 9Si 4O 23(OH)，常有交叉状内生结晶，有时用作宝石 〔primary〕Serving as or being an essential component, as of a system; basic.See Synonyms at chief 主要的，基本的：作为主要成分的，如一个系统的主要成分的；基本的 参见 chief〔elastin〕A protein similar to collagen that is the principal structural component of elastic fibers.弹性蛋白：与胶原白相似的一种蛋白质，是形成弹性纤维的主要成分〔lyddite〕An explosive consisting chiefly of picric acid.立德炸药：一种主要成分为苦味酸的炸药〔triglyceride〕A naturally occurring ester of three fatty acids and glycerol that is the chief constituent of fats and oils.甘油三酸酯：甘油与三个脂及酸形成的天然的酯，是脂肪和油的主要成分〔limonite〕Any of a group of widely occurring yellowish-brown to black iron oxide minerals, essentially FeO(OH)·n H 2O, used as a minor ore of iron. 褐铁矿：大量出现的黄褐色至黑色的氯化铁矿群中的一种，主要成分为FeO(OH)·n H 2O，作铁矿藏开采 〔cellulose〕A complex carbohydrate, (C6H 10O 5) n, that is composed of glucose units, forms the main constituent of the cell wall in most plants, and is important in the manufacture of numerous products, such as paper, textiles, pharmaceuticals, and explosives. 纤维素：一种复杂的碳水化合物， (C6H 10O 5) n，由葡萄糖分子组成，是大部分植物细胞壁的主要成分，在许多产品生产如纸张、织物、药物和炸药中起着重要作用 〔hemimorphite〕A usually white or colorless mineral, essentially Zn4Si 2O 7(OH) 2·H 2O, an important ore of zinc. Also called calamine 异极矿：一种通常为白色或无色的矿物质，主要成分是Zn4Si 2O 7(OH) 2·H 2O，是锌的一种重要矿石 也作 calamine〔beryl〕A transparent to translucent glassy mineral, essentially aluminum beryllium silicate, Be3Al 2Si 6O 18, occurring in hexagonal prisms and constituting the chief source of beryllium. Transparent varieties in white, green, blue, yellow, or pink are valued as gems. 绿玉：一种透明到半透明的玻璃状矿石，主要成分为硅酸铝铍，Be3Al 2Si 6O 18，呈六棱柱结构，是铍的主要来源。各种透明的白色、绿色、蓝色、黄色或粉色绿玉与宝石价值相当 〔lazurite〕A relatively rare blue, violet-blue, or greenish-blue translucent mineral, Na4 - 5Al 3Si 3O 12S, the chief component of lapis lazuli. 天青石：一种比较珍贵的透明矿物质，多呈蓝色、蓝紫色或蓝绿色，Na4 - 5Al 3Si 3O 12S，是杂青金石的主要成分 〔kaolinite〕A mineral, Al2Si 2O 5(OH) 4, that is the principal constituent of kaolin. 高岭石：一种矿物，Al2Si 2O 5(OH) 4，是高岭土的主要成分 〔base〕A fundamental ingredient; a chief constituent:基本成分；主要成分：〔basis〕The chief constituent; the fundamental ingredient.主要成分；基本成分〔ilmenite〕A lustrous black to brownish titanium ore, essentially FeTiO3. 钛铁矿：一种发亮的黑色或褐色钛矿石，主要成分为FeTiO3 〔uracil〕A pyrimidine base, C4H 4N 2O 2, that is an essential constituent of RNA. 尿嘧啶：嘧啶碱基，C4H 4N 2O 2，是核糖核酸的主要成分 〔chalcocite〕A dark gray mineral, essentially Cu2S, that is an important ore of copper. 辉铜矿：一种深灰色矿物，主要成分为Cu2S，一种重要的铜矿石 〔hypersthene〕A green, brown, or black splintery, cleavable pyroxene mineral, essentially (Fe,Mg)2Si 2O 6. 紫苏辉石：一种绿色的，棕色的，或黑色的易裂可切开的矿石，主要成分(Fe，Mg)2Si 2O 6 〔stilbite〕A white or yellow lustrous zeolite mineral, essentially (Ca,Na)2Al 2Si 7O 18·7H 2O. 辉沸石：一种白色或黄色有光泽沸石，主要成分为(Ca,Na)2Al 2Si 7O 18·7H 2O 〔martensite〕A solid solution of iron and up to 1 percent of carbon, the chief constituent of hardened carbon tool steels.马氏本，马登斯体：一种由铁和高达百分之一的碳组成的溶液，是硬化碳工具钢的主要成分〔cleavage〕The series of mitotic cell divisions that produces a blastula from a fertilized ovum. It is the basis of the multicellularity of complex organisms. Also called segmentation 卵裂，卵割：由一组有丝分裂细胞从受精卵中生成的囊胚，是复杂有机体中多细胞的主要成分 也作 segmentation〔firedamp〕A combustible gas, chiefly methane, occurring naturally in mines from the decomposition of coal.沼气：一种在矿坑里由煤腐烂而自然产生的可燃气体，主要成分是甲烷〔staple〕A basic or principal element or feature.主要成分：基本或主要的成分或特征〔galena〕A gray mineral, essentially PbS, the principal ore of lead.方铅矿：一种作为铅的主要矿石的灰色矿物，主要成分为PbS〔Lavoisier〕French chemist who is regarded as the founder of modern chemistry. He isolated the major components of air, disproved the phlogiston theory by determining the role of oxygen in combustion, and organized the classification of compounds. Lavoisier was executed during the Reign of Terror.拉瓦锡，安托万·洛朗：(1743-1794) 法国化学家，被认为是现代化学的奠基人。他分离出空气中的主要成分，证明了氧气在燃烧中所起的作用从而否定了燃素理论，并把化合物进行了分类。拉瓦锡在恐怖统治时期被处死〔dinoflagellate〕Any of numerous minute, chiefly marine protozoans of the order Dinoflagellata, characteristically having two flagella and a cellulose covering and forming one of the chief constituents of plankton. They include bioluminescent forms and forms that produce red tide.双鞭毛海虫：一种记载，主要是腰鞭毛虫海洋原生动物，特点是有两种鞭毛及纤维素的外壳，形成浮游生物中一种主要成分。他们包括生物发光类型，可引起赤潮〔galenical〕A medicinal preparation composed mainly of herbal or vegetable matter.草药：主要成分为草本物质或植物物质的药物制剂 |
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