With the increasing of EGR ratio, NOX emission decreased more than 90%, at the same time, HC emission and fuel consumption increased, but EGR has little impact on co emission.
随着EGR比率的增加，NOX排放大幅度降低，下降幅度达90%以上，而HC排放和燃油消耗率都随着上升，但排气再循环对CO排放的影响不是很大。
Compared with the conventional diesel engine, the soot emissions of dual fuel engine reduce dramatically and NOX emissions decrease, while HC and co emissions increase slightly.
与原柴油机相比，双燃料发动机的碳烟排放大幅度下降，NOX排放降低，而HC和CO排放有所增加。
Compared with the conventional diesel engine, the soot emissions of dual fuel engine reduce dramatically and NOX emissions decrease, while HC and co emissions increase slightly.
与原柴油机相比，双燃料发动机的碳烟排放大幅度下降，NOX排放降低，而HC和CO排放有所增加。
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