超声波: ultrasonic; pretersonic; sup ...定向: directional; orient; orienta ...和: mix; blend测距: range finding; distance meas ...装置: installation; device; appara ...定向和测距装置: ddr定向和测距装置定向与测距系统: determination of direction and range定向和测距: direction finding and ranging声波探测和测距装置: sound detecting and ranging声波定位和测距: sfar; sound fixing and ranging光学定向和测距: opdar; optical direction and ranging无线电定向和测距: radar radio direction and ranging光学定向和测距,光雷达: optical directional and ranging (opdar)雷达(无线电定向和测距): radar (radio detecting and ranging)声波导航与测距装置: sonar声波定向器: direction listening device; direction-listening device; directional sound detector; phonozenograph测距装置: distance measuring equipment; distance mesurement equipment; dme; range unit; ranging device超声波水声测距与定位声波定位与测距声发: sound fixing and ranging超声波定位器: dodar determination of direction and range; ultrasonic locator无线电探向和测距: radiolocation调频测距装置: fm range measuring system; frequency modulation range measuring system光波测距装置: electronic distance meters雷达测距装置: radar range unit双路测距装置: two-path dme system张索测距装置: taut wire measuring gear