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| Potter-Bucky diaphragm; anti-diffusion grid; anti-scatter grid; antiscatter grid; secondary radiation grid | |||
| collimator | |||
| collimator-telescope test method | |||
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collimator : 7 phrases in 7 subjects |
| Astronomy | 1 |
| Electronics | 1 |
| Environment | 1 |
| Life sciences | 1 |
| Mechanic engineering | 1 |
| Natural sciences | 1 |
| Physics | 1 |