system board

• n. 系统面板；系统板

system board的用法和样例：

例句

1. Peripherals are real devices, such as graphics cards or disks controlled by controller chips on the system board or on cards plugged into it.
   外设是一些物理设备，比如说图象卡或者磁盘，它们受控于位于主板或者主板上插槽中的控制芯片。