servern.服务器；侍者；辅祭者；发球者；托盘server operator服务器操作员server grabbing服务结点获取server settings服务器设置Server vacation服务员假期server controls服务器控件server-cluster服务器集群server vacations休假server extension服务器扩展Server Switching服务器交换网server selection服务器选择