a combustible mixture of methane and other hydrocarbons, occurring naturally underground and used chiefly as a fuel and as raw material in industry
any gas that flows out from the earth's crust through natural openings or bored wells
| 单词 | natural gas |
| 释义 | natural gasnouna combustible mixture of methane and other hydrocarbons, occurring naturally underground and used chiefly as a fuel and as raw material in industry any gas that flows out from the earth's crust through natural openings or bored wells |
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