例句與造句

1. When the secondary circuit is open, the core flux is produced by the primary current only .
   當(dāng)次級(jí)電路開路時(shí)，鐵芯磁通量僅僅由初級(jí)電流產(chǎn)生。
2. It's difficult to find core flux in a sentence. 用core flux造句挺難的