超声波数字水位计  ultrasonic digital water level gauge

井周数字声波成像扫描测井仪  cast-v

数字声波  digital acoustic

数字声波测井仪  SDT

数字声波井下电子线路  SDC; sonic digital cartridge

超声回波脉冲数字式测厚仪  ultrasonic echo-impulse digital thickness meter

数字超声波测深仪  digital ultrasonic echo-sounder

数字超声列车车轴多波检测仪  digital ultrasonic train axle multi-wave detector

数字式超声波测厚仪  digital ultrasonic thickness gauge

数字式超声波探伤仪  digital ultrasonic flaw detector

数字型超声波检测仪  digital ultrasonic inspection instrument

数字-数字数据变换器  digital-to-digital data converter

波数–波数域  k-k domain

带正负号数字数字系统  signed digit number system

iPOD数字声讯播放机硬盘  iPod

Sony数字数据接口  Sony digital data interface

波数波频滤波  wavenumber-frequency filtering

波数波频谱  wave number-frequency spectrum

波数字滤波器  Wave digital filter

常规数字波束形成  con- ventional digital beam form