The differential group delay (DGD) of the output light which passes through the E-O modulator PMD is estimated and verified by the experimental data.是什么意思_The differential group delay (DGD) of the output light which passes through the E-O modulator PMD is estimated and verified by the experimental data.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句