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单词
clast
释义
WordReference Random House Unabridged Dictionary of American English © 2024
clast
(klast),
USA pronunciation
n.
Geology, Rocks
a grain of sediment, silt, sand, gravel, etc., esp. as a constituent fragment of a clastic rock formation, as distinguished from a chemical or biogenic component of such a formation.
probably back formation from
clastic
1950–55
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更新时间:2026/3/25 2:47:38