| Subject | English | Chinese |
| electric. | symmetric characteristic circuit element | 对称特性电路元件 |
| tech. | symmetric element | 对称要素 |
| cryptogr. | symmetric element | 对称元件 |
| el. | symmetric characteristic circuit element | 对称特性电路元件 |
| el. | symmetric characteristic circuit element | 对称元件 |
| tech. | symmetric element | 对称元素 |
| el. | symmetric polyphase element | 对称多相元件 |