例句與造句

1. An a . c . voltage of 2000 volts is applied between the winding and ground to test the integrity of the insulation between the winding and core iron
   在線圈繞組和地線上加上2000伏交流電以測試線圈繞組和芯鐵之間的絕緣的整體性能。
2. It's difficult to find core iron in a sentence. 用core iron造句挺難的