Alumina
[ә'lu:minә]
解釋/意思:
(noun.) any of various forms of aluminum oxide occurring naturally as corundum.
整理:诺里斯--From WordNet
解釋/意思:
(n.) One of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3.
迪莉娅編輯
同義詞及近義詞：
n. Oxide of aluminum, argillaceous earth, argil.
尤金伲亚整理
解釋/意思:
n. one of the earths the characteristic ingredient of common clay—the oxide of aluminium.—adj. Alū′minous containing alum or alumina.
古斯塔夫校對
例句/造句/用法:
- The Cowles process heats to incandescence by the electric current a mixture of alumina, carbon and copper, the reduced aluminum alloying with the copper. Edward W. Byrn. 十九世紀發明進展.
- It has, however, for the most parts been superseded by the process patented by Hall, April 2, 1889, No. 400,766, in which alumina dissolved in fused cryolite is electrically decomposed. Edward W. Byrn. 十九世紀發明進展.
- The process of manufacture of rubies is carried on with the oxyhydrogen blow-pipe, to whose intense heat the powdered alumina with its coloring oxides is subjected. 佚名. 神奇的知識之書.
- Among other lining materials found suitable were soapstone, alumina, ammonia, copperas, starch, Epsom salts, and gypsum, paper, pulp, and alum, and a mixture of various other materials. 威廉·亨利·杜利特. 世紀發明.
- The ruby, chemically considered, is crystallized alumina, or oxide of aluminum, with a small percentage of oxide of chromium. 佚名. 神奇的知識之書.
恩里克錄入