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镜像频率 | |
IT | image frequency |
oil | second-channel frequency |
SA干扰 | |
UN geol. | Selective Availability |
干扰 | |
hydroel.st. | interference |
IMF. | disturbance |
met. | noise; obstruction |
UN econ. | disruption |
| |||
image frequency | |||
second-channel frequency | |||
| |||
image frequency |
镜像频率 : 1 phrase in 1 subject |
Aviation | 1 |