“ptygma”的概念、定义、翻译、参考文献-科学参考

单词	ptygma
释义	ptygma [`tig·mǝ] ^GEOLOGY Pegmatitic material with migmatite or gneiss, resembling disharmonic folds. Also known as ptygmatic fold.
随便看	sago sag pond Saha ionization Saha's equation sahel sahlinite sahlite Sail sail sailboat sailcloth sailfish sailing sailing chart sailing directions sail plan Saint Elmo's fire Saint Hilaire method Saint Joseph retort process Saint Louis encephalitis Saint Peter sandstone Saint Venant's compatibility equations Saint Venant's principle Saint Vitus dance Sakata-Taketani equation

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