喷油器主要用于( )柴油机中。A.涡流室燃烧室B.预燃室燃烧室C.直接喷射式燃烧...

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【单选题】

喷油器主要用于( )柴油机中。

涡流室燃烧室

预燃室燃烧室

直接喷射式燃烧室

分隔式燃烧室

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