单词：encrustations
音标：[inˌkrʌsˈteiʃənz] ；
n. 结壳( encrustation的复数形式 ); 用覆盖物; 镶嵌; 硬壳
n. the formation of a crust
n. a hard outer layer that covers something
n. a decorative coating of contrasting material that is applied to a surface as an inlay or overlay
n. a hard outer layer that covers something
n. a decorative coating of contrasting material that is applied to a surface as an inlay or overlay