active dye活性染料activeadj.活跃的；积极的；起作用的；灵活的active training technique主动训练技术active electronic jamming有源电子干扰active power distribution有功功率分配active Ethernet over coax有源EOCactive sampling equipment放射性取样设备active satellite repeater主动卫星转发器active continental margin主动大陆边缘Active fixation electrode主动固定电极active map representation动态地图表示active chromosphere binary活动色球双星