directaxisadj.直轴
directadj.直接的;笔直的;坦白的v.对准;指挥;指示;命令
directed - Line of Sight对准视线链路
direct frequency synthesis直接频率合成
direct contact feed heater直接给水加热器
direct method of isolation直接分离法
direct ballistocardiograph直接记录式心冲击图机
direct-view picture tube直观式显像管
direct periodic strabismus直接周期性斜视
direct gravimetric problem重力正演问题
direct conversion receiver直接变换接收机