electromagnetic induction law 基本例句 电磁感应定律 The principle of electromagnet induction had thus been discovered.电磁感应定律就是这样发现的。 Faraday discovered the Law of Electromagnetic Induction after years of trial error, and trial again.经过几年的试验，失败，再实验，法拉第终于发现了电磁感应定律。