单词	twinned
释义	twinned /twɪnd / adjective (Of a crystal) that is a composite consisting of two (or sometimes more) parts which are reversed in orientation with respect to each other (typically by reflection in a particular plane): cerrusite, pseudo-hexagonal crystals, usually twinned a mass of twinned crystals... When viewed in thin section, it is clear that the ‘massive’ material is composed of an intergrowth of complexly twinned crystals. A variety of large twinned crystal forms of gypsum grow on the floors of evaporating lagoons and lakes including fans and needles. Although the quartz encrustation protects the calcite from dissolving, it obscures the twinned nature of the crystals, which is revealed by mechanical removal of the crust.
随便看	chinkara Chinkiang Chinky chinless chinless wonder chin music Chinnampo chinned chino Chino- chinois chinoiserie chinook Chinook Jargon chinook salmon chinook wind chinquapin chinstrap chintz chintzily chintziness chintzy chin-up chinwag chionodoxa

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