reverse polarity

• 反接

reverse polarity的用法和样例：

例句

1. Reversed polarity indicates the weldment connected to welding machine negative polarity.
   反接是工件接电源负极。
2. Polarity is inherent in a magnet.
   极性是磁铁的固有性质。
3. The polarity can be reversed,standard size.
   极性可反转或变换，标准尺寸。