| 21. | electrical appliances |
| 电器用具
|
| 22. | education with electrical audiovisual aids |
| 电化教育
|
| 23. | civil [chemical, electrical , mechanical, mining] engineering |
| 土木[化学、电机、机械、采矿]工程（学）
|
| 24. | an electrical impulse |
| 电脉冲
|
| 25. | electrical installations |
| 电气设备
|
| 26. | the committee on organization of International Electrical Congress |
| 国际电力会议组织委员会
|
| 27. | an electrical contact |
| 电气插头[触点]
|
| 28. | break [open] an electrical circuit |
| 中断电路，切断电流
|
| 29. | economic [ electrical , historical, sanitary, statistical, technical] science |
| 经济学[电学、史学、卫生学、统计学、工艺学]
|
| 30. | standards on electrical insulating materials |
| 电气绝缘材料的规格
|