“Deerparkian”的概念、定义、翻译、参考文献-科学参考

单词	Deerparkian
释义	Deerparkian [dir`pärk·ē·ǝn] ^GEOLOGY A North American stage of geologic time in the Lower Devonian, above Helderbergian and below Onesquethawan.
随便看	sprinkler system Sprint s-process sprocket sprocket chain sprocket hole sprocket pulse sprocket wheel spruce spruce oil spruce sulfite extract sprue sprue bushing sprue gate sprue puller sprung axle sprung weight SPST spud spudded-in Spumellina spun glass spun rayon spun silk spun yarn

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