| |||
радиоэхо | |||
отражённый импульс | |||
эхо-сигнал; эхо | |||
отражённый сигнал |
reflection echo : 10 phrases in 8 subjects |
Electronics | 2 |
Nanotechnology | 1 |
Non-destructive testing | 1 |
Physics | 1 |
Radiolocation | 1 |
Technology | 1 |
Telecommunications | 1 |
Television | 2 |