non-directional echo sounding meaning in English
非定向回声测深法
Related Words
- directional cosine
- directional differentiation
- directional wattmeter
- directional drainage
- directional trim
- directional source
- directional bit
- directional stimuli
- directional gyrocompass
- directional testing
- non-directional current protection
- non-directional detector
- non-directional point source
- non-directional radiation