They are switches that enable one electric current to control the passage of another.
它们以开关的方式工作，使得一个通路中的电流可以控制另一通路中的电流。
Lysis of a bond produced by the passage of an electric current.
电流引起的化学键的分解或溶解过程。
Every metal has its own resistance to the passage of an electrical current through it.
每一种金属在电流通过时都会产生阻力。
Every metal has its own resistance to the passage of an electrical current through it.
每一种金属在电流通过时都会产生阻力。
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