单选题引起曲轴附加弯曲应力是()所致。A主轴承磨合不良B主轴颈磨损不均匀C主轴颈过度磨损D各道主轴承磨损不均

单选题
引起曲轴附加弯曲应力是()所致。
A

主轴承磨合不良

B

主轴颈磨损不均匀

C

主轴颈过度磨损

D

各道主轴承磨损不均


参考解析

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