硬件变换部件 hardware unit: 硬件设备; 硬件装置unit transformation: 单位变换; 恒等变换hardware memory management unit: 硬件存储器管理单元self-contained hardware unit: 自备的硬件设备unit two hardware and software: 硬件和软件下载手机词典可随时随地查词查翻译