常見例句

雙語例句

• This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.
  該裝置在總饋電開關處的漏電保護裝置使用附加直流電源原理，在分支饋電開關處的漏電保護裝置使用零序功率方向式保護原理。
返回 branch feeding