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| collimator; tube diaphragm | |||
| collimator tube | |||
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准直 管 : 31 phrases in 9 subjects |
| Agriculture | 1 |
| Aviation | 7 |
| Electronics | 2 |
| General | 2 |
| Mechanic engineering | 2 |
| Mechanics | 5 |
| Metallurgy | 2 |
| Space | 3 |
| Technology | 7 |
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