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| 磁电式仪表 | |||
| 动圈式仪表 | |||
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| 动圈式仪表 | |||
| 动圈式仪器; 磁电式仪表 | |||
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| 磁电系仪表 | |||
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moving- coil instrument : 8 phrases in 3 subjects |
| Electronics | 4 |
| Metallurgy | 2 |
| Technology | 2 |
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