Poloidal
a. [物](磁场)极向的, 角向的
🗣️ 情景例句
This is as useful as screen door on a submarine.
这毫无用处。
First try, and then trust.
试了才能相信。
In his youth, his father and grandfather often told him stories about their family history.
年轻时，他的父亲和祖父常常同他说起他们的家史。