英语词汇“photo echo”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	photo echo
释义	photo echo photo echo [′fōd·ō ‚ek·ō] (optics) A coherent pulse of light generated in a nonlinear medium at a characteristic time after two other pulses, separated by a certain time interval, have entered the medium.
随便看	direct auscultation direct autodin interface direct automatic volume control direct autumn release direct avr direct-band-gap semiconductor direct bank direct bank crediting direct banking direct bank lodgement system direct bank pointer direct basophil degranulation test direct beam steering direct bearing direct beauté diffusion méditerranée direct bilirubin direct billing direct billing data base direct billing integration direct biofuel direct bond copper direct-bonded bearing direct bonding direct bone impression direct booking service

英语词典包含2567994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。