In addition, with the maturity of ADSL technology, direct use of PON as terminal access equipment in FTTH is not so popular as ASDL applications.是什么意思_In addition, with the maturity of ADSL technology, direct use of PON as terminal access equipment in FTTH is not so popular as ASDL applications.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句