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| Russian | English |
| Контрольное топливо | Check Fuel (leaskmay) |
| краник для проверки уровня, контрольный краник | trycock (Valve used as a backup system of determining water level in a boiler/One of two or more cocks arranged one above the other to ascertain the water level in a steam boiler  merriam-webster.com erodenis) |