| IPC 7 English version |
| G21-G21B00102 |
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| SECTION G – PHYSICS |
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| G 21 | NUCLEAR PHYSICS; NUCLEAR ENGINEERING |
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| G 21 B | FUSION REACTORS (uncontrolled reactors G21J) |
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1/ | 00 | Alleged controlled-fusion reactors |
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1/ | 02 | . | using a beam of particles some of which react with other particles |
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