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| English | Chinese |
| double acting limited switch | 双作用限制开养 |
| double break switch | 双断〔路点〕开关 |
| double contact | 双触点头的 |
| double contact | 双触头 |
| double feeder | 二线式馈〔电〕线 |
| double-groove insulator | 双托的绝缘器 |
| double-groove double-petticoat insulator | 双托双裙的绝缘器 |
| double pole | 二极〔的〕 |
| double pole | 双杆〔的〕 |
| double pole | 双极 |
| double pole double throw | 双极双投〔开关〕 (switch) |
| double pole single throw | 双极单投〔开关〕 (switch) |
| double-pole snap | 双极快动开关 (switch) |
| single pole double throw | 单极双投〔开关〕 (switch) |
| triple-pole double-throw | 三极双投〔开关〕 (switch) |