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单词 hemihedral
释义

Definition of hemihedral in US English:

hemihedral

adjective ˌheməˈhēdrəlˌheməˈhēdrəl
Crystallography
  • Having half the number of planes required for symmetry of the holohedral form.

    Example sentencesExamples
    • Analysis was complicated by perfect hemihedral twinning, which was masked in intensity statistics by pseudocentering.
    • A regular or twin intergrowth between two hemihedral crystals frequently takes place and results in the production of a holohedral form.
    • Hexagonal bR crystals of space group P6 3 often exhibit a perfect hemihedral twinning.
    • Depending on the hemihedral twin-fraction, there are two different scenarios that must be understood.
    • The two types of quartz are distinguished by minor crystal faces, the hemihedral facets, which form a left-handed screw pattern in one set and a right-handed pattern in the other.
 
 

Definition of hemihedral in US English:

hemihedral

adjectiveˌheməˈhēdrəl
Crystallography
  • Having half the number of planes required for symmetry of the holohedral form.

    Example sentencesExamples
    • The two types of quartz are distinguished by minor crystal faces, the hemihedral facets, which form a left-handed screw pattern in one set and a right-handed pattern in the other.
    • Depending on the hemihedral twin-fraction, there are two different scenarios that must be understood.
    • A regular or twin intergrowth between two hemihedral crystals frequently takes place and results in the production of a holohedral form.
    • Analysis was complicated by perfect hemihedral twinning, which was masked in intensity statistics by pseudocentering.
    • Hexagonal bR crystals of space group P6 3 often exhibit a perfect hemihedral twinning.
 
 
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更新时间:2024/12/23 1:43:18