氧化锌避雷器测试仪牵引时，有必要留心使电缆拉直拉紧。

Zinc oxide lightning arrester testing instrument for traction, it is necessary to pay attention to the cable taut.

youdao

氧化锌避雷器测试仪牵引时，有必要留心使电缆拉直拉紧。

Zinc oxide lightning arrester testing instrument for traction, it is necessary to pay attention to the cable taut.

youdao