例句與造句

1. For a simple 1 / 4-wave whip, the radials are often sloped at a 45 degree angle to bring the feed point impedance closer to 50 ohms.
2. Installing the tuner between the feed line and the antenna allows for the feed line to see a load close to its characteristic impedance, while sending most of the transmitter's power ( a small amount may be dissipated within the tuner ) to be radiated by the antenna despite its otherwise unacceptable feed point impedance.
3. It's difficult to find feed point impedance in a sentence. 用feed point impedance造句挺難的