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单词 碱性
释义 〔tribasic〕Containing three univalent basic atoms or radicals per molecule. Used of a base or salt.三碱式的:每个分子中含有三个一价碱性原子或原子团的。用于碱类或盐类〔azurite〕An azure blue vitreous mineral of basic copper carbonate, Cu3(CO 3) 2(OH) 2, used as a copper ore and as a gemstone. Also called chessylite 蓝铜矿,石青:天蓝色透明无机物碱性碳酸铜,Cu3(CO 3) 2(OH) 2,用作一种铜矿或宝石 也作 chessylite〔basophilic〕Relating to tissue components that stain readily with basic dyes.嗜碱的:与易为碱性染剂染色的组织成分有关的〔morphine〕A bitter, crystalline alkaloid, C17H 19NO 3·H 2O, extracted from opium, the soluble salts of which are used in medicine as an analgesic, a light anesthetic, or a sedative. Also called morphia 吗啡:一种苦而透明的碱性物,分子式为C17H 19NO 3·H 2O,从鸦片中提取,其可溶性盐在医学中用作麻醉剂,即一种轻麻醉剂或镇静剂 也作 morphia〔histone〕Any of several small, basic proteins most commonly found in association with the DNA in chromatin.组织蛋白:几种分子量小的碱性蛋白质,总与DNA一起发现于染色质中〔neutrophil〕Not stained strongly or definitely by either acid or basic dyes but stained readily by neutral dyes. Used especially of white blood cells.嗜中性染料的:不一定非用酸性或碱性染剂染色不可的,也易于用中性染剂染色的,尤其指白细胞〔archival〕"An archival material should have a neutral or slightly alkaline pH; it should also . . . have good aging properties"(Artist's Magazine)“档案材料应具有中性或略呈碱性的PH值;它也应…具有良好的老化性能”(艺术家杂志)〔neurotransmitter〕A chemical substance, such as acetylcholine or dopamine, that transmits nerve impulses across a synapse.神经传送体:通过神经键传递神经脉冲的化学物质,如碱性有机化合物或多巴胺〔alkali〕A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions.碱:碱金属的碳酸盐或氢氧化物,其水解溶液味苦、滑腻、有腐蚀性且在反应中呈碱性〔tetrabasic〕Containing four univalent basic atoms or radicals. Used of bases or salts.四代的:含有四个单价碱性原子或基团的,用于碱或盐〔basophilia〕An abnormal stippling of red blood cells with basic staining granules.嗜碱细胞增多症:在红色血液细胞中带有碱性染色颗粒的不正常的症状〔bile〕A bitter, alkaline, brownish-yellow or greenish-yellow fluid that is secreted by the liver, stored in the gallbladder, and discharged into the duodenum and aids in the emulsification, digestion, and absorption of fats. Also called gall 1胆汁:贮存在胆囊里由肝脏分泌的苦的、碱性、黄褐色或黄绿色液体,由十二指肠排出以帮助分解、消化和吸收脂肪 也作 gall1〔protamine〕Any of a group of simple proteins found in fish sperm that are strongly basic, are soluble in water, are not coagulated by heat, and yield chiefly arginine upon hydrolysis. In purified form, they are used in a long-acting formulation of insulin and to neutralize the anticoagulant effects of heparin.鱼精蛋白:任一种在鱼精中发现的一组简单蛋白质,有很强的碱性,溶于水,遇热时不凝固,在水解作用时主要产生精氨酸。在纯净的形态下,它们被用在胰岛素的长期组织化以及中和肝鳞脂的防凝因效应中〔olivenite〕A mineral, Cu2(AsO 4)(OH), a basic arsenate of copper, that is brown, olive green, or gray in color and found in copper deposits. 橄榄铜矿:一种矿石,Cu2(AsO 4)(OH),铜的一种基本的碱性砷酸盐或酯,呈褐色、橄榄绿色或灰色,可在铜矿层中找到 〔Gobi〕A desert of southeast Mongolia and northern China. It consists mainly of a series of shallow alkaline basins.戈壁沙漠:位于中国北部和蒙古东南部的沙漠,主要由一系列浅平的碱性盆地构成〔alkali〕Middle English [alkaline substance from calcined plant ashes] 中古英语 [燃烧过的植物灰中所含的碱性物质] 〔polybasic〕Of or relating to an acid that has two or more hydrogen atoms that can be replaced by basic atoms or radicals.多元的;多碱价的:一种含有两个或更多能被碱性原子或原子团取代的氢原子酸的;或与之有关的〔patina〕A thin greenish layer, usually basic copper sulfate, that forms on copper or copper alloys, such as bronze, as a result of corrosion.铜绿锈:通常如碱性硫酸铜的一层浅绿色薄层,在铜或铜合金(如青铜)上形成,是由腐蚀引起的〔pH〕A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14.酸碱度:溶液酸性或碱性的度量,数值等于7的为中性溶液,数值增大表示碱性增大,数值减小表示酸性的增大。PH值范围一般在0到14之间〔phosphine〕Any of several organic compounds having the structure of an amine but with phosphorus in place of nitrogen.碱性染革黄棕:具有胺的结构的、但是以磷替代了氮的有机化合物〔polychromatophilia〕Affinity for more than one type of stain, especially for both basic and acidic stains.多染色性:一种以上种类的染色剂的亲和力,特别是对碱性和酸性染色剂都具有的亲和力〔basophil〕A cell, especially a white blood cell, having granules that stain readily with basic dyes.嗜碱白血球:一种细胞,特别是白细胞,具有和碱性染剂一样容易染色的粒子〔saponification〕A reaction in which an ester is heated with an alkali, such as sodium hydroxide, producing a free alcohol and an acid salt, especially alkaline hydrolysis of a fat or an oil to make soap.皂化:一种酯与碱,如氢氧化钠,混合加热产生的反应,可生成游离醇和酸盐,尤指能用来制肥皂的油脂碱性水解物〔glycine〕A sweet-tasting crystalline nonessential amino acid, C2H 5NO 2, that is the principal amino acid occurring in sugar cane. It is derived from the alkaline hydrolysis of gelatin and used in biochemical research and medicine. 甘氨酸:一种甜的结晶状氨基酸,C2H 5NO 2,是甘蔗中基本的氨基酸,由明胶的碱性水解获得,用于生物化学研究和医学 〔alkaloid〕Any of various organic compounds normally with basic chemical properties and usually containing at least one nitrogen atom in a heterocyclic ring, occurring chiefly in many vascular plants and some fungi. Many alkaloids, such as nicotine, quinine, cocaine, and morphine, are known for their poisonous or medicinal attributes.生物碱:有机化合物的一种,通常呈碱性且在一杂环中至少含有一个氮原子,主要存在于许多维管植物和一些真菌中。许多生物碱,如尼古丁、金鸡纳霜、可卡因和吗啡都以其毒性或在医药方面的特性而为人们所熟知〔verdigris〕A blue or green powder consisting of basic cupric acetate used as a paint pigment and fungicide.醋酸铜:由碱性的醋酸铜构成的一种蓝色或绿色粉末,用作颜料和杀真菌剂〔neutral〕Of or relating to a solution or compound that is neither acidic nor alkaline.酸碱平衡的:溶液或化合物非酸性也非碱性的或与之有关的〔rubidium〕A soft silvery-white metallic element of the alkali group that ignites spontaneously in air and reacts violently with water, used in photocells and in the manufacture of vacuum tubes. Atomic number 37; atomic weight 85.47; melting point 38.89°C; boiling point 688°C; specific gravity (solid) 1.532; valence 1, 2, 3, 4. See table at element 铷:一种银白色的软的碱性金属元素,与空气接触会立即燃烧,与水反应剧烈,用于光电池和制造真空管。原子序数37;原子量85.47;熔点38.89°C;沸点688°C;比重(固体)1.532;化合价1,2,3,4 参见 element〔mandrake〕The root of this plant, which contains the poisonous alkaloid hyoscyamine. Also called mandragora 曼德拉草根:这种植物的根,含有有毒的碱性天仙子胺 也作 mandragora〔basic〕Producing, resulting from, or relating to a base.盐基的,碱性的:碱性的,盐基的,属于或关于碱性的、盐基的〔alkalinity〕The alkali concentration or alkaline quality of an alkali-containing substance.碱度,碱性:含碱物质中碱的浓度或碱的特性〔verditer〕Either of two basic carbonates of copper, used as a blue or green pigment.铜盐颜料:铜的两种盐碱性的碳酸盐之一,用作蓝色或绿色颜料〔alkaline〕Having a pH greater than 7.碱性的:pH值大于7的〔cesium〕A soft, silvery-white ductile metal, liquid at room temperature, the most electropositive and alkaline of the elements, used in photoelectric cells and to catalyze hydrogenation of some organic compounds. Atomic number 55; atomic weight 132.905; melting point 28.5°C; boiling point 690°C; specific gravity 1.87; valence 1. See table at element 铯:一种质地柔软的银白色韧性金属,室温时为液体,为最具正电性与碱性的元素,用作光电池和某些有机化合物氢化作用的催化剂。原子序数55;原子量132.905;熔点28.5°C;沸点°C;比重1.87;化合价1 参见 element〔piperidine〕A strongly basic, colorless liquid, C5H 10NH, used in the manufacture of rubber and as a curing agent in epoxy resins. 哌啶,六氢吡啶,氮杂环己烷:一种高碱性无色液体,C5H 10NH,用于橡胶制造和环氧树脂的硫化剂
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