所有的导线都要载电流。
由于导线很细，电流的密度非常之高。
Because the wires are very fine, the density of the electrical current is high.
电流通过导线，正像水流过管子一样。
Electricity flows through a wire just as water flows through a pipe.
导线如果放在水下，电流就会全部漏掉。
If a wire was laid under water, the current would all leak away.
最后给出了跨导线性电路在电流模式电路中的应用实例。
Some application examples of translinear principle in current mode circuits are given out.
导线中有微弱的电流通过。
电流沿着导线输送。
当电流流过导线时，它会遇到某种阻力。
When an electric current flow through a wire it meets some opposition.
当电流流过导线时，它会遇到某种阻力。
When an electric current flow through a wire it meets some opposition.
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