driv-ing point impedance的用法和樣例：
例句
- The guard amplifier is a unity-gain amplifier with very high input impedance.
保護放大器是一個(gè)具有非常高輸入阻抗的單位增益放大器。 - Finally, the curve of the relation between input and load impedance of the exponential waveguide is given and discussed.
最后，討論了指數形波導管的阻抗特性，分析了輸入阻抗與負載阻抗之間的關(guān)系。
