SS4G型电力机车触头的磨损主要是( )磨损A.电磨损 B.化学磨损 C.机械磨损

作者: tihaiku 人气: - 评论: 0

问题 SS4G型电力机车触头的磨损主要是( )磨损

选项 A.电磨损 B.化学磨损 C.机械磨损

答案 A

解析 SS4G机车乘务员第二章机电机电器

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