electric fields

常見例句

• So far we have considered the electric field only.
  以上我們僅僅討論了電場。
• They do have very strong electric fields, but the fields are mostly perpendicular to the direction of propagation.
  它們的確都具有相儅強的電場，不過電場的方曏都垂直於運動的方曏。
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