柯林斯詞典encrustation /???kr??ste???n/ (encrustations) 1. N-VAR An encrustation is a hard and thick layer on the surface of something that has built up over a long period of time. (長(zhǎng)時(shí)間形成的)硬殼; 外皮; 沉積物 返回 encrustation劍橋詞典→? incrustation （同incrustation） 返回 encrustation