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| 1. | percentage accounted for paper insulation to nakedness wire in single paper-wrapping flat copper wire, double-core |
| 介绍了单根纸包扁铜线、根复合导线、根复合导线绝缘纸占裸导线重量的百分数的计算方法。 |
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| 2. | double core optical fiber |
| 双芯光纤 |
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| 3. | double tube core barrel |
| 复式岩心管 |
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| 4. | double core plastic wire |
| 双芯塑料电线 |
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| 5. | double core barrel drill |
| 双筒取心钻具 |
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| 6. | double core rubber insulated lead sheathed and armored cable |
| 双芯橡胶绝缘铅包铠装电缆 |
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| 7. | double layer core dispersion-shifted single-mode fiber |
| 双层纤芯色散位移单模光纤 |
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| 8. | double-tube core |
| 岩心管 |
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| 9. | In this paper a new single-core and double-winding magnetic fieldsensor using near-zero magnetostriction |
| 本文研究了利用近零磁致伸缩系数钴基非晶态合金丝制成的单磁芯双绕组新型磁场传感器。 |
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