user board的用法和樣例：
例句
- The author designed a MC68488 GPIB chip based interface board, and desighed some application software.
該介面板在水平子午環的控制系統中得到了成功的應用。 - The paper designs and debugs a hardware interface board on the base of the fire intelligent alarm arithmetic.
在火災智能報警演算法的基礎上，本文設計並調試了一塊硬體介面板。
