已知导线中流过的电流，只要测出导线两端电位差的伏特值，就能很容易得出任何长度导线的电阻值。
The resistance of any length of a conducting wire is easily measured by finding the potential difference in volts between its ends when a known current is following.
已知导线中流过的电流，只要测出导线两端电位差的福特值，就能很容易得出任何长度导线的电阻值。
The resistance of any length of a conducting wire is easily measured by finding the potential difference in volts between its ends when a known current is following.
已知导线中流过的电流，只要测出导线两端电位差的福特值，就能很容易得出任何长度导线的电阻值。
Thee resistance of any length of a conducting wire is easily measured by finding the potential difference in volts between its ends when a known current is following.
应用推荐