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光学跟踪
| 卫星
| 光学跟踪 | |
| space | optical tracking |
| GPS 卫星 | |
| space | GPS satellites |
| N 卫星 | |
| space | N-SAT |
| 卫星 | |
| environ. | satellite |
| rem.sens. | satellite |
| space | megabirds; satellites, balloons and rockets |
| |||
| optical tracking | |||
| optic look-on; optical look-on; optic tracking | |||
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光学跟踪 : 132 phrases in 10 subjects |
| Air defense | 2 |
| Automobiles | 1 |
| Aviation | 16 |
| Earth sciences | 1 |
| Electronics | 28 |
| General | 1 |
| Missiles | 3 |
| Space | 39 |
| Technology | 38 |
| United States | 3 |
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