| 单词 | hemitropy |
| 释义 | > as lemmasheˈmitropy heˈmitropy n. hemitropic crystallization. ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > structures and forms > [noun] > hemitrope > hemitropism hemitropisma1830 hemitropy1879 1879 F. Rutley Study of Rocks x. 92 Due to hemitropy or a half revolution of one of the halves of the crystal. 1895 N. Story-Maskelyne Crystallogr. §163 It results from the law of hemitropy that each pair of corresponding faces on the two crystals lies in one zone with the twin-plane and that the faces make equal angles with it. < as lemmas |
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