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释义 〔Grignard〕French chemist. He shared a 1912 Nobel Prize for his discovery of a group of reagents used in the synthesis of organic compounds.格雷利亚,弗朗索瓦·奥古斯特·维克托:(1871-1935) 法国化学家,因发现用于合成有机化合物的一系列试剂而获得1912年诺贝尔奖〔ether〕A volatile, highly flammable liquid, C2H 5OC 2H 5, derived from the distillation of ethyl alcohol with sulfuric acid and widely used as a reagent, a solvent, and an anesthetic. Also called diethyl ether ,ethyl ether 乙烯:一种易挥发的,极易燃烧的液体C2H 5OC 2H 5,由乙醇与硫酸一起蒸馏获得,广泛用作试剂、溶剂和麻醉剂 也作 diethyl ether,ethyl ether〔stain〕A reagent or dye used for staining microscopic specimens.色素:用来染显微镜标本的试剂或颜料〔EDTA〕A crystalline acid, C10H 16N 2O 8, that acts as a strong chelating agent. The sodium salt of EDTA is used as an antidote for metal poisoning, an anticoagulant, and an ingredient in a variety of industrial reagents. 乙二胺四乙酸:一种结晶状的酸,C10H 16N 2O 8,用作强螯合剂,EDTA的钠盐被用作金属中毒的解剂,抗凝血剂及许多工业试剂 〔hydroquinone〕A white crystalline compound, C6H 4(OH) 2, used as a photographic developer, an antioxidant, a stabilizer, and a reagent. 对苯二酚:一种白色结晶合成物,化学式C6H 4(OH) 2,用作显影剂、抗氧化剂、安定剂以及试剂 〔offset〕An agent, an element, or a thing that balances, counteracts, or compensates for something else.补偿,抵消:一种用以平衡、抵消、中和或补偿另一物的试剂、元素等物〔electrophile〕A chemical compound or group that is attracted to electrons and tends to accept electrons.亲电子试剂:一种化学复合物或原子团,被电子吸引并具有吸引电子的倾向〔tolidine〕Any of several isomeric bases, C14H 16N 2, derived from toluene, one of which is used as a reagent to test for gold and for chlorine in water. 联甲苯胺:C14H 16N 2同分异构体中的任意一种,由甲苯变化而成,其中有一种可用作察看水中是否含金或氯气的试剂 〔molybdenum〕A hard, silvery-white metallic element used to toughen alloy steels and soften tungsten alloy. An essential trace element in plant nutrition, it is used in fertilizers, dyes, enamels, and reagents. Atomic number 42; atomic weight 95.94; melting point 2,617°C; boiling point 4,612°C; specific gravity 10.22 (at 20°C); valence 2, 3, 4, 5. See table at element 钼:一种银白色硬金属元素,用于加硬钢合金和软化钨合金。它是植物营养必要的一种微量元素,用于肥料、染料、搪瓷和试剂。原子序数42;原子量95.94;熔点2,617°C;沸点4,612°C;比重10.22(20°C时);化合价为2,3,4,5 参见 element〔reagent〕A substance used in a chemical reaction to detect, measure, examine, or produce other substances.试剂:在化学反应中用到的一种物质,其作用是探测、测量、检查或产生其它物质〔nontarget〕Not being the target, as of an agent or a weapon:不是(研究)对象的,如试剂或武器:〔titration〕The process, operation, or method of determining the concentration of a substance in solution by adding to it a standard reagent of known concentration in carefully measured amounts until a reaction of definite and known proportion is completed, as shown by a color change or by electrical measurement, and then calculating the unknown concentration.滴定:一种测定溶液中一种物质浓度的过程、操作或方法,在该溶液中以经过仔细测量的剂量加入一种已知浓度的标准试剂,直到一个已知比例确定的反应结束为止,如通过颜色变化或测量所显示,然后再计算未知的浓度〔obstruent〕An obstruent medicine or agent.阻塞剂:一种用于阻塞的药物试剂〔chemotherapy〕The treatment of cancer using specific chemical agents or drugs that are selectively destructive to malignant cells and tissues.化学疗法:用对癌变细胞和组织相对具有破坏性的某种试剂或药品来治疗癌症的方法〔medicine〕An agent, such as a drug, used to treat disease or injury.药,药物:用来治疗疾病或受伤的试剂(如一种药剂)〔spermicide〕An agent that kills spermatozoa, especially one used as a contraceptive. Also called spermatocide 杀精子剂:杀精子的试剂,尤指用作避孕药 也作 spermatocide〔stain〕To treat (specimens for the microscope) with a reagent or dye that makes visible certain structures without affecting others.着色:用试剂或颜料处理(在显微镜下观察的标本)以便使某些结构可见而不影响其他结构〔mordant〕A reagent, such as tannic acid, that fixes dyes to cells, tissues, or textiles or other materials.媒染体:一种可以将染色固定到细胞、组织或纺织品及其它材料上的试剂,如鞣酸
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