SZYV-75-2型号的电缆,其中75表示()。A、特性阻抗B、绝缘外径C、屏蔽层数D、结构特征

作者: rantiku 人气: - 评论: 0
问题 SZYV-75-2型号的电缆,其中75表示()。
选项 A、特性阻抗 B、绝缘外径 C、屏蔽层数 D、结构特征
答案 A
解析

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