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单词 室温
释义 〔oil〕Any of numerous mineral, vegetable, and synthetic substances and animal and vegetable fats that are generally slippery, combustible, viscous, liquid or liquefiable at room temperatures, soluble in various organic solvents such as ether but not in water, and used in a great variety of products, especially lubricants and fuels.油类:任一种从矿物、植物中提炼的和人工合成物质以及动植物油,一般较为湿滑,可燃、粘稠、液态的或在室温下为液体,可溶于各种有机溶剂如酸,但不溶于水,用于大量的产品,特别是润滑剂和燃料中〔normal〕normal room temperature; one's normal weight; normal diplomatic relations.标准室温;正常体重;正常外交关系〔zinc〕A bluish-white, lustrous metallic element that is brittle at room temperature but malleable with heating. It is used to form a wide variety of alloys including brass, bronze, various solders, and nickel silver, in galvanizing iron and other metals, for electric fuses, anodes, and meter cases, and in roofing, gutters, and various household objects. Atomic number 30; atomic weight 65.37; melting point 419.4°C; boiling point 907°C; specific gravity 7.133 (25°C); valence 2. See table at element 锌:一种蓝白色带光泽的金属元素,室温下易碎,但加热后可展延。用于制造各种合金,包括黄铜、青铜、各种焊料和镍银,以及给铁和其它金属镀锌,还用于电保险丝、阳极和仪表,以及屋面材料、檐槽和各种家庭用具。原子序数30;原子量65.37;熔点419.4°C;沸点907°C;比重7.133(在25°C时);化合价2 参见 element〔gallium〕A rare metallic element that is liquid near room temperature, expands on solidifying, and is found as a trace element in coal, bauxite, and other minerals. It is used in semiconductor technology and as a component of various low-melting alloys. Atomic number 31; atomic weight 69.72; melting point 29.78°C; boiling point 2,403°C; specific gravity 5.907; valence 2, 3. See table at element 镐:一种在室温下是液体的稀有金属元素膨胀成固化,通常作为煤、铝土岩和其它矿中的微量元素而存在。用于半导体技术和各种低融合金的合成。原子序数31;原子量69.72;熔点27.98摄氏度;沸点2,403摄氏度;比重5.907;化合价2,3 参见 element〔mercury〕Symbol Hg A silvery-white poisonous metallic element, liquid at room temperature and used in thermometers, barometers, vapor lamps, and batteries and in the preparation of chemical pesticides. Atomic number 80; atomic weight 200.59; melting point -38.87°C; boiling point 356.58°C; specific gravity 13.546 (at 20°C); valence 1, 2. Also called quicksilver See table at element 符号 Hg 水银,汞:一种银白色有毒金属元素,室温下呈液态,用于温度计、气压计、蒸气灯及电池中,也用于化学杀虫剂中。原子序数为80;原子量为200.59;熔点-38.87°C;沸点为356.58°C;比重为13.546(20°C时);化合价为1,2 也作 quicksilver 参见 element〔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〔age〕cheese aging at room temperature.See Synonyms at mature 在室温下成熟的奶酪 参见 mature
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