(a) the longitudinal axis of a screw; (b) Mathematics the longitudinal axis of a helix; an axis of symmetry such that a combination of rotation…
| 单词 | θ70682 |
| 释义 | the world > matter > chemistry > crystallography (general) > crystal (general) > crystal symmetry > [noun] > axis of symmetry > types of (3) screw axis1843 (a) the longitudinal axis of a screw; (b) Mathematics the longitudinal axis of a helix; an axis of symmetry such that a combination of rotation… twin-axis1855 the axis of twinning in a twin crystal, i.e. the line about which either of the constituent crystals would have to revolve to come into the… triad axis1909 Specific uses. Crystallography. triad axis, an axis of trigonal symmetry. |
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