“Devonian Period”的概念、定义、翻译、参考文献-科学参考

单词	Devonian Period
释义	Devonian Period Encyclopedia 理学古生代释 Devonian Period泥盆纪古生代的第四个纪，在志留纪之后，石炭纪之前。约开始于4.19亿年前，结束于3.59亿年前，持续时间约0.6亿年。泥盆纪时期形成的地层称泥盆系(Devonian System)。
随便看	alternate interior angle alternate interior angles alternate matrix alternate matrix geometry alternate phyllotaxy alternate product of tensors alternate series alternating alternating algebra alternating algorithm alternating bilinear form alternating chain alternating circuit alternating circuit, AC circuit alternating continued fraction alternating continuous wave alternating copolymer alternating copolymerization alternating current alternating current, AC alternating-current and direct-current electromagnet yokes test instrument alternating current arc source alternating current bridge alternating-current bridge alternating current bridge, AC bridge

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