The manufactured fuel gas can be used for industry, boilers, power generation, heating and civilian use.

产生的燃气可工业、锅炉、发电、加热、民用。

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For example, the BBC reported in 2007 that all cars manufactured in Iran were mandated to have dual-fuel capacity to run on either gasoline or compressed natural gas (CNG).

FORBES: Another Way to Sanction Iran: Natural Gas