He Ne laser speckle photography technology can measure the temperature of PN junction of the Laser diode in line,for controlling the emit wavelength.是什么意思_He Ne laser speckle photography technology can measure the temperature of PN junction of the Laser diode in line,for controlling the emit wavelength.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句