| Subject | English | Russian |
| tech. | complete a circuit | замыкать цепь питания (One set of contacts completes a circuit to the secondary filament to keep the running light in service. BorisKap) |
| construct. | complete a circuit | замыкать цепь |
| el. | complete a circuit | замыкать цепь |
| Makarov., el. | complete a circuit | замыкать цепь (элк.) |
| Makarov., el. | complete a circuit conductively | замыкать цепь гальванически (элк.) |
| Makarov. | complete a circuit conductively | замыкать цепь гальванически |