SPM is unobvious when input optical power is less than 0 dBm, and when input optical power is greater than 0 dBm and less than 12 dBm, SPM weakens the GVD effect and extends the transmission distance.是什么意思_SPM is unobvious when input optical power is less than 0 dBm, and when input optical power is greater than 0 dBm and less than 12 dBm, SPM weakens the GVD effect and extends the transmission distance.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句