encrustation
柯林斯词典
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. (长时间形成的)硬壳; 外皮; 沉积物
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encrustation /ˌɪŋkrʌˈsteɪʃən/ (encrustations)
剑桥词典
- → incrustation
（同incrustation） 返回 encrustation