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vertical interval test
| signal
| vertical interval test | |
| avia. | 垂直插人测试 |
| el. | 帧扫描期插人测试 |
| signal | |
| gen. | 打信号 |
| bridge. | 信号 |
| hydroel.st. | 标志 |
| sport. | 发信号; 手势 |
| tech. | 信号 |
| |||
| 帧扫描期插人测试信号 | |||
| |||
| 垂直插人测试 | |||
| 垂直间隔试验 | |||
| vertical interval test: 6 phrases in 5 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Radio | 1 |
| Space | 2 |
| Telecommunications | 1 |
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