Bu araba doğal gazla çalışır.
- This car runs on natural gas.
Hidroelektrik yenilenebilir bir kaynaktır ama petrol, kömür ve doğal gaz değil.
- Hydropower is a renewable resource, but oil, coal and natural gas are not.
Natural-gas prices.
... to the lowest levels in 20 years. Oil production is up, natural gas production is up, and, ...
... the American people believe that. I will fight for oil, coal and natural gas. And the proof, ...