单词	核避难所
释义	核避难所phr.nuclear shelter核避难所
随便看	optical properties of thin films optical property optical property--optical character optical protection ring optical protection switching optical protective coating optical protractor optical proximity correction optical pulsar optical pulse optical pulse amplification optical pulse amplifiers optical pulse compression optical pulse counter optical pulse-counting optical pulse generation optical pulse generators optical pulse injection optical pulse measurements optical pulse propagation optical pulses optical pulse shaping optical pulses, solitons optical pulse transmission optical pulse transmitter using laser