英语词汇“h and d speed”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	h and d speed
释义	h and d speed \\|āchənˈdē-\ noun Usage: usually capitalized H&D Etymology: after Ferdinand Hurter and Charles Driffield fl 1890 : a number indicating the sensitivity of a photographic emulsion determined by the method of Hurter and Driffield
随便看	quasi-reorganization quasi-stellar object quasi-stellar radio source quasi-tangent arc quasi usufruct quasky quasquicentennial quass quassia quassia quassin quat quatenus quater quater- quatercentenary quaternary quaternary quaternary ammonium compound quaternary silver quaternate quaternion quaternity quaternization quaternize

英语词典包含332784条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。