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利用在汽油中掺混不同体积百分比含氧化合物形成“模型”燃油的方法，研究了运转参数对燃用含氧燃料时火花点火发动机未燃碳氢排放的影响。实验结果表明；燃用不同含氧燃料时未燃碳氢排放对水温、油温和节气门开度变化的敏感程度不同。
The effect of operating parameters on the unburned hydrocarbon emissions of spark-ignited engines with oxygen-containing fuels was studied by means of blending “gasoline” with different volume percentages of oxygenate to form “model” fuel. The experimental results show that the sensitivity of unburned hydrocarbon emissions to changes in water temperature, oil temperature and throttle opening when using different oxygenated fuels is different.