preloader

例句：

1. 1.The server needs to be preloaded with data before it can start processing requests.
   服务器在开始处理请求之前需要预先加载数据。
2. 2. The software was designed to preload the operating system when it starts up.
   该软件设计为启动时预加载操作系统。
3. 3.The preloader is a small device that automatically loads the operating system when it boots up.
   预加载器是一个小型设备，当电脑启动时会自动加载操作系统。