p. pr. & vb. n. of Lustren. The act or process of imparting a luster, as to pottery.n. The brightening of a metal in the crucible when it becomes pure, as in certain refining processes.
v. 使有光泽, 使有光彩, 给…增光( luster的现在分词 ); 有光泽, 发光; 上光