详细解释:【电】 系统单位
例句：
In System/38, a panel located adjacent to the system console on the system unit that contains lights and switches that are used primarily when the system is started or serviced.在IBMSystem／38中，位于系统部件上并与系统控制台邻接的一种面板，它包含主要用于系统启动或维护时所需的指示灯和开关。