The heat breaks the biomass down into a charcoal-like solid and the bio-oil, giving off some gas in the process.

这种情况下，加热会把生物原料变成木炭似的固体物质和生物原油，同时释放某些气体。

youdao

These include liquefied petroleum gas, but also alternatives like biogas, managed charcoal and processed briquettes.

“这包括使用液化石油气，但是也有其他方案，例如沼气、木炭和经过处理的煤饼”。

youdao

Turn the gas down or wait for the charcoal to become low-burning embers. (Oven roasting and baking are done at lower temperatures so fewer HCAs are likely to form.)

请把煤气关小或者直到木炭快烧完才烤(用烤箱烘烤时，温度越低，可能产生的杂环胺就越少)。

youdao

Natural gas stoves and gas dryers or charcoal grills also create carbon monoxide.

VOA: special.2010.02.02

Carbon monoxide is produced when fuels such as gas, oil, charcoal, coal and wood do not burn completely.

BBC: Carbon monoxide alarms in new NI homes now compulsory

Heat a gas grill to medium-high or light a charcoal fire and let it burn just until the coals are covered with gray ash.

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Today is Father's Day and we wish a special day to all fathers, whether you use gas or charcoal to burn the burgers.

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