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单词 θ4993
释义
the world > the earth > structure of the earth > structural features > rock formations > [noun] > cone or cone-in-cone (3)
cone-in-cone1877

a peculiar geological structure, presenting the appearance of a number of cones one packed inside another.

cone-sheet1924

(see quots.).

shatter cone1933

a fluted conical structure produced in rock by intense mechanical shock, esp. by that associated with meteoritic impact.

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更新时间:2025/1/11 15:16:18