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| magnifying device | |||
| amplifying device; multiplying arrangement | |||
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放 大装置 : 14 phrases in 10 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Business | 1 |
| Electric machinery | 2 |
| Electronics | 1 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Space | 1 |
| Technology | 4 |
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