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| Chinese | English |
| 三极双投开关 | triple-pole double-throw (switch) |
| 单极双投开关 | single pole double throw (switch) |
| 双作用限制开养 | double acting limited switch |
| 双托双裙的绝缘器 | double-groove double-petticoat insulator |
| 双托的绝缘器 | double-groove insulator |
| 双断路点开关 | double break switch |
| 双杆的 | double pole |
| 双极 | double pole |
| 双极单投开关 | double pole single throw (switch) |
| 双极双投开关 | double pole double throw (switch) |
| 双极快动开关 | double-pole snap (switch) |
| 双触头 | double contact |
| 双触点头的 | double contact |