incrustation

n 1 [U] formation of a hard outer covering; encrusting 结皮; 形成硬壳. 2 [C] hard outer covering or layer, esp one that forms gradually 硬壳, 外层（尤指逐渐形成的）: incrustations of barnacles on the hull 藤壶附在船身上形成坚硬的外层.

incorruptibility, incorruptible, incorruptibly, incoterms, increase, increased, increasing, increasingly, incredibility, incredible, incredibly, incredulity, incredulous, incredulously, increment, incremental, incrementally, incriminate, incrimination, incriminatory, incubate, incubation, incubator, incubus, inculcate, inculpate, incumbency, incumbent, incur, incurable, incurably, incuriosity, incurious, incursion, incurved, Ind, indebted, indebtedness, indecency, indecent,