常見例句雙語例句This text introduces basic conception of the firewall and operation principle mainly. We provide an application instance of PIX firewall in the campus network.本文主要介紹防火牆的基本概唸和工作原理，給出PIX防火牆在校園網(wǎng)絡中的應用實例。kns50.chkd.cnki.net 返回 pix firewall