1650s, "from or of Wales or the Welsh," from Cambria, variant of Cumbria, Latinized derivation of Cymry, the name of the Welsh for themselves, from Old Celtic Combroges "compatriots." Geological sense (of rocks first studied in Wales and Cumberland) is from 1836.
雙語例句
1. Dengta marine built gypsum deposits occurred in Mantou Jianchang Formations, Lower Cambrian.
燈塔海積石膏礦床賦存于下寒武統饅頭組—堿廠組中.
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2. The Pre - cambrian alumino - siliceous slate is the host rock of antimony deposit inHunan.
湖南前寒武系的 硅鋁 質板巖是銻礦主要賦礦巖性.
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3. The Cambrian - Ordovician strata in Luxi Block are very continuous and well exposed.
魯西地塊的寒武 - 奧陶紀地層出露連續,露頭較好.
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4. Dolostone is the main rock type of the Cambrian in this area.
從下寒武統石龍洞組開始都是白云巖沈積.
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5. ON TAXONOMIC POSITION OF LATE CAMBRIAN PROTAITZEHOIA YANG ( TRILOBITA )