Electric current is a flow of atomic particles called electrons. Certain materials , called conductors, allow electrons to flow through them. Most metals (copper, iron) are good conductors of electricity. Electrons will flow from the “-” electrode of a battery, through a conductor, towards the “+” electrode of a battery. Volts (voltage) is a measure of the force moving the electrons.
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When current flows through a conductor, a magnetic field is formed around the conductor.
通有电流的导体在其周围会产生磁场。
Methods An experimental pulmonary embolism model in rats was made by injecting coagulated thrombus in vitro into right atrium cordis through a conductor.
方法采用改良的导管方法将体外已凝的大鼠血栓注入右心房制备大鼠急性肺栓塞模型。
When you go through a metal detector at the airport with a conductor such as keys in your pocket, the alarm goes off.
当你带着一个导体（比如口袋的钥匙）走过机场的金属探测器时，机器会发出警报声。
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