| 1. | A fluctuating magnetic field is produced in the iron .
铁心中就产生交变磁场。 |
| 2. | For low-frequency currents(up to about 15, 000 cycles per second)an iron core, called a magnetic circuit; is placed .
对于低频率电流（约15，000周秒以内），置有一个叫作磁路的铁心。 |
| 3. | Norway imports of dry gas stove horizontal wind thread machine
从德国引进的铁心横剪线 |
| 4. | Material - saving measures in power transformer corn design
电力变压器铁心设计的节材措施 |
| 5. | Computation of losses in step - lap laminated transformer cores
变压器阶梯接缝铁心的损耗计算 |
| 6. | Single - phase power transformers using r - cores
单相r型铁心电源变压器 |
| 7. | E - cores for three - phase transformers used in electronic equipment
电子设备用三相变压器e型铁心 |
| 8. | Core : consisted of cold - rolled steel with high permeability
铁心：由高导磁的冷轧硅钢片构成。 |
| 9. | R - cores for single - phase transformers
单相r型变压器用铁心 |
| 10. | Single core typy current transformer
单铁心型电流互感器 |
