单词 | 抗酸 |
释义 | 〔duralumin〕An alloy of aluminum that contains copper, manganese, magnesium, iron, and silicon and is resistant to corrosion by acids and sea water.杜拉铝:一种铝合金,含铜、锰、镁、铁与硅,能抗酸和海水腐蚀〔antacid〕Counteracting or neutralizing acidity, especially of the stomach.解酸的,抗酸的,防酸的,中和酸的:消除或中和酸度的,尤其胃酸〔ruthenium〕A hard white acid-resistant metallic element that is found in platinum ores and is used to harden platinum and palladium for jewelry and in alloys for nonmagnetic wear-resistant instrument pivots and electrical contacts. Atomic number 44; atomic weight 101.07; melting point 2,310°C; boiling point 3,900°C; specific gravity 12.41; valence 0, 1, 2, 3, 4, 5, 6, 7, 8. See table at element 钌:一种坚硬的白色抗酸金属元素,在铂矿中可找到它,用于加固铂和钯以制成宝石和化合成非磁性的抗磨损的工具枢纽和电接触器。原子序数44;原子量101.07;熔点2,310°C;沸点3,900°C;比重12.41;原子价0,1,2,3,4,5,6,7,8 参见 element |
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