“Gotlandian”的概念、定义、翻译、参考文献-科学参考

单词	Gotlandian
释义	Gotlandian [gät`lan·dē·ǝn] ^GEOLOGY A geologic time period recognized in Europe to include the Ordovician; it appears before the Devonian.
随便看	downcomer down cutting downcutting downdip down-Doppler downdraft downdraft carburetor down-feed system downflow downhand welding downhole drill downhole equipment down-lead downlink down-load down lock down milling down quark downrange downrush Downs cell downslope time downspout Down's process Down's syndrome

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