外部设备运算元的英文

• external-device operands

• 运算:    operation; arithmetic; opera ...
• 元:    first; primary
• 外部设备:    external device; external equipment; external instrumentation; external plant; external unit; outside plant; peripheral equipment; peripheral unit
• 外部设备码:    external device code
• 外部设备响:    external-device response