en·crus·ta·tion /(ˌ)ɪnˌkrʌsˈteʃən, ˌɛn-/
en·crus·ta·tion /ˌɛn-/ 名詞
被覆皮殼(動)
encrustation
n 1: the formation of a crust [syn: incrustation]
2: a hard outer layer that covers something [syn: crust, incrustation]
3: a decorative coating of contrasting material that is applied
to a surface as an inlay or overlay [syn: incrustation]