physical network connection meaning in English

物理网络连接

All ive campuses are installed with wireless local area network whereby students can access the campus network with a notebook computer or a personal digital assistant ( pda ) in almost every corner of the campus without any physical network connection
各分校均已安装了无线区域网络，学生可在校园内任何地方，无需连接固网，便可使用手提电脑或电子手帐上网。