dioptrics
/daɪ'ɒptrɪks/ /daɪ'ɑːptrɪks/
n. 
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dysbarism, dysbasia, dysbetalipo-proteinemia, dysbiosis, dysbolism, dysbulia, dyscalculia, dyscatabrosis, dyschiria, dyschizia,
相似单词
dioptoscopy, dioptra, dioptrate, dioptre, dioptric, dioptrics, dioptrometer, dioptrometry, dioptroscopy, dioptry,