正确答案: B

an independent lube oil system

题目：Lubrication for the main reduction gears used with diesel engines is usually supplied by

解析：B

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举一反三的答案和解析：

[单选题]容易引起锅炉炉膛燃气爆炸的是( )。

供油系统向炉膛内漏油

[单选题]硫酸庆大霉素不宜用于()

静脉推注