| 单词 | orthopyramid |
| 释义 | > as lemmasorthopyramid ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > specific crystal forms > [noun] > miscellaneous others pyramid1748 hemihedron1837 pyritohedron1841 adamantoid1850 pyritoid1850 orthoprism1872 orthopyramid1872 polyprism1873 macropyramid1883 shish kebab1966 1872 T. Egleston Descriptive Mineral. p. xxii (table) Orthopyramid. 1898 E. S. Dana Text-bk. Mineral. (new ed.) 101 The pyramids may be unit pyramids (hhl), orthopyramids, (hkl) when h >k, or clinopyramids, (hkl) when h <k. < as lemmas |
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