dioptrics
/daɪ'ɒptrɪks/ /daɪ'ɑːptrɪks/
n. 
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bituminise, bituminite, bituminization, bituminize, bituminosis, bituminous, bituminous coal, bituminouspaint, bitumite, bitumogene,
相似单词
dioptoscopy, dioptra, dioptrate, dioptre, dioptric, dioptrics, dioptrometer, dioptrometry, dioptroscopy, dioptry,