external tax输入<进口>税externaladj.外来的；外部的；外面的；表面的n.外观；外部；外界事物external braced aeroplane外张单翼机external monitoring meter外部监测计external hemorrhoidectomy外痔切除术external condyle of femur股骨外侧髁external coherence system外相干external device data flow外部设备数据流external adjustable timer[电] 外部调整定时器external groove side wall外槽壁external auditory foramen外耳孔, 外耳门external-device control外部设备控制