| 单词 | rock marl |
| 释义 | Definition of rock marl in English:rock marlnoun Geology historical
OriginLate 18th century; earliest use found in John Rutty (1698–1775), physician. Definition of rock marl in US English:rock marlnoun Geology historical
OriginLate 18th century; earliest use found in John Rutty (1698–1775), physician. |
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