net field造句

例句与造句

1. if the shield current, i2 is equal and opposite to that in the center conductor, the center-conductor field and the shield field will cancel, producing a zero net field
   如图18，图中屏蔽体上的电流与电缆芯线中的电流大小相等、方向相反，于是由这两个电流感应出来的磁场将相互抵消。
2. It's difficult to find net field in a sentence. 用net field造句挺难的