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| system of distributing ray | |||
| beam splitting system; optic splitting system; optical splitting system | |||
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分 光 系统 : 39 phrases in 6 subjects |
| Air defense | 1 |
| Aviation | 3 |
| Earth sciences | 5 |
| Electronics | 16 |
| Space | 2 |
| Technology | 12 |
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