installation
n.安装；装置；永久性军事基地；就职
网络解释.安装；装置；安装方式；设备
词形变化:
复数：installations
appointment accession institution application admission
双语例句
1. 1 . Installation of the new system will take several days.
新系统的安装需要几天时间。
来自《权威词典》