| Answer | Crossword Clue |
|---|---|
| VENT | Opening for gas, steam, or lava |
| VENT | Opening for gas or steam |
| generators | An apparatus for producing gas, steam, or another product |
| generator | An apparatus for producing gas, steam, or another product |
| turbines | A machine for producing continuous power in which a wheel or rotor, typically fitted with vanes, is made to revolve by a fast-moving flow of water, steam, gas, air, or other fluid |
| regulator | a. governor mechanism for regulating the flow of fuel, steam, etc., to an engine in order to maintain constant speed under varying load or resistance b. valve for regulating the pressure of flowing gas or liquid to maintain a predetermined p |
