When input optical power is greater than 15 dBm, SPM is predominant in single channel optical transmission system and the maximum input optical power is 18 dBm.是什么意思_When input optical power is greater than 15 dBm, SPM is predominant in single channel optical transmission system and the maximum input optical power is 18 dBm.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句