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| free band (位于结肠系膜带和网膜带之间，横结肠下缘以及升、降结肠和乙状结肠的前缘，容易观察到) | |||
| free band | |||
| 独立 带: 28 phrases in 14 subjects |
| Air defense | 1 |
| Architecture | 1 |
| Automobiles | 6 |
| Aviation | 2 |
| Communications | 1 |
| Electronics | 5 |
| General | 1 |
| Geophysics | 1 |
| Information technology | 2 |
| Oil / petroleum | 1 |
| Radio | 1 |
| Space | 1 |
| Technology | 4 |
| Telecommunications | 1 |
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