... fuel-air mixture ==> 燃料空气混合物 fuel air ratio ==> 燃料-空气比例 fuel-air ratio control ==> 燃料-空气比控制 ...
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燃料系统必须改变空气和燃料的比例以适应不同的运行状态。
The fuel system must vary the proportions of air and fuel to suit different operating conditions.
调节阀能够保证从冷启动到预热空气一直保持恒定的空气-燃料比例。
The regulator holds a constant air-fuel ratio from cold start-up through hot air operation.
因此，必须通过燃烧器助燃空气与燃料精确的自动比例调节来实现上述要求，且比例调节为全量程的输出范围。
As a result, the ratio between the volume of air and the amount of fuel used must be accurately adjusted -across the burner's entire output range.
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