background lectromagnetism field

• 背景场强

background lectromagnetism field的用法和样例：

例句

1. The field inside the conductor is zero.
   在导体内部的场强为零。
2. Treeing would reduce the breakdown field of insulation, shorten the lifetime of cables.
   电树枝化的发生，降低了绝缘击穿场强，缩短了电缆的使用寿命。