DO

DO

1. ■ =Data Out [output] 数据输出;

2. ■ Defense Order 防御命令;

3. ■ Diesel Oil 柴油;

4. ■ Dissolved Oxygen 溶解氧;

5. ■ Drawing Office 设计室, 制图室;

6. ■ Drop Out 脱落, 退出