单词 | frustulum |
释义 | ‖ ˈfrustulum Obs. Pl. frustula. [L. frustulum small piece.] a. A fragment, an atom. b. Math. A small frustum.
1700S. Parker 6 Philos. Ess. 109 Nor yet could each such Frustulum have been so modify'd and temper'd as we find, unless by the same. 1785Herschel in Phil. Trans. LXXV. 241 Suppose a rectangular cone cut into frustula by..planes perpendicular to the axis. |

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