The downstream throughput of the cable modem can be 27M bit/sec or 40M bit/sec,depending on the quality of the HFC channel from the head end to the subscriber units.是什么意思_The downstream throughput of the cable modem can be 27M bit/sec or 40M bit/sec,depending on the quality of the HFC channel from the head end to the subscriber units.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句