单选题回流线距接地体的最小极限距离是:()A50mmB75mmC150mmD240mm
单选题
回流线距接地体的最小极限距离是:()
A
50mm
B
75mm
C
150mm
D
240mm
参考解析
解析:
暂无解析
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单选题回流线距桥梁的最小极限距离是:()A50mmB75mmC150mmD240mm
50mm
75mm
150mm
240mm