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| 电气常数 | |||
| 电常数; 电气参数 | |||
| 电常数真空绝对电容率,真空介电常数 | |||
| electric constant: 14 phrases in 5 subjects |
| Aviation | 1 |
| Electric machinery | 2 |
| Electronics | 4 |
| Piezoelectric crystals | 1 |
| Technology | 6 |
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