| |||
| неясный сигнал; труднораспознаваемый сигнал | |||
|
obscured signal : 5 phrases in 2 subjects |
| Non-destructive testing | 3 |
| Technology | 2 |
| |||
| неясный сигнал; труднораспознаваемый сигнал | |||
|
obscured signal : 5 phrases in 2 subjects |
| Non-destructive testing | 3 |
| Technology | 2 |