“dictyonema bed”的概念、定义、翻译、参考文献-科学参考

单词	dictyonema bed
释义	dictyonema bed [´dik·tē·ǝ`nē·mǝ ´bed] ^GEOLOGY A thin shale bed rich in remains of graptolites of the genus Dictyonema.
随便看	steam trap steam-tube dryer steam turbine steam valve steam washer steapsin stearamide stearate stearic acid stearin stearyl alcohol steatite steatization Steatornithidae steatorrhea Steckel rolling S tectonite STED steel steel bronze steel-cable conveyor belt steel-case steel-clad rope steel converter steel emery

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