rip·rap /ˈrɪpˌræp/
亂石,碎石,堆成的石基(vt.)用亂石築基
Rip·rap n. Masonry A foundation or sustaining wall of stones thrown together without order, as in deep water or on a soft bottom, or in a river channel.
Rip·rap, v. t. [imp. & p. p. Riprapped p. pr. & vb. n. Riprapping.] To form a riprap in or upon.
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