graptolites 中文意思是什麼
graptolites
解釋
筆石類-
Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.
表明筆石詳細構造的物質是利用氫氟酸從石灰巖中侵蝕出來。 -
During the early silurian, the corals of the erlangping trough and the graptolites of the xichuan shelf belonged to the south china province
在早志留世，二郎坪海槽的珊瑚與浙川陸棚的筆石屬華南生物省。
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