Bu araba doğal gazla çalışır.
- This car runs on natural gas.
Kömür ve doğal gaz doğal yakıtlardır.
- Coal and natural gas are natural fuels.
Natural-gas prices.
... to the lowest levels in 20 years. Oil production is up, natural gas production is up, and, ...
... to the highest levels in 16 years. Natural gas production is the highest it's ...