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单词 hemisymmetry
释义 hemiˈsymmetry Cryst.
[hemi- b.]
Same as hemihedrism. Hence hemisyˈmmetrical a., hemihedral.
1881Thudichum Ann. Chem. Med. II, Hemisymmetry in the Chemical Constitution of Gelatin.1895Story-Maskelyne Crystallogr. §271 A few forms exhibit, in the defalcation of their alternate faces, the gyroidal hemi-symmetry, which, however, must be held really to dominate the structure of the entire crystal.Ibid. §280 Hemi-symmetrical crystals afford abundant examples of twin-structure.
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