instal/install /inˈstɔ:l/ vt. 安装：instal a telephone(program) 安装一部电话（一个软件）Make sure the equipment is properly installed.要确保设备得到妥善安装。The switches are cheap to buy and easy to install.这种开关价格便宜，安装简便。
installation /ˌinstəˈleiʃəｎ/ n. 1.［u］安装，安置，设置: The installation of more electric lights made the room brighter. 装了更多的电灯以后房间更亮了。2.［c］装置，设备，设施: a wireless installation 无线电装置；wartime installations 战时军事设施
