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	turn him loose turn him off turn him on turn him on to turn him out turn him upside down turn his clock back turn his clock forward turn his clocks back turn his clocks forward turn his coat turn his crank turn his face to the wall turn his hand to turn his hand to something turn his head stump wood stumpwood stumpwork stumpy stums stum [st?m] stun stun baton stun bullet

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