Under low loads and in the case of nozzle with a central injection hole, the smoke intensity slightly rises, but the fuel economy doesn't deteriorate.
在低负荷下，喷嘴带中心喷孔时的烟度稍高些，但燃油消耗率不恶化。
Under low loads and in the case of nozzle with a central injection hole, the smoke intensity slightly rises, but the fuel economy doesn't deteriorate.
在低负荷下，喷嘴带中心喷孔时的烟度稍高些，但燃油消耗率不恶化。
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