通用知识:有触点电器的触头断开状态工作状态其关键问题是确定触头开距以实现可靠地()。A.机械振动 B.发热 C.熄灭电弧 D.电隔离

作者: tihaiku 人气: - 评论: 0
问题 通用知识:有触点电器的触头断开状态工作状态其关键问题是确定触头开距以实现可靠地()。
选项 A.机械振动 B.发热 C.熄灭电弧 D.电隔离
答案 D
解析 T-89

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