本文介绍了源与负载匹配的条件及在设计、使用中应注意的技术问题，以使放大器输出电压达到满幅或接近满幅状态。
The efforts should be made in design and operation to ensure full or near full amplitude for output voltage of the amplifier.
与负载匹配状况的合理选择是电压源和电流源经常遇到的问题。
The reasonable choice of matching state of voltage source or current source is a common problem in measurement.
优化匹配网络，减小负载电流和电压的相角，以减少负载反射功率；
Optimizing the matching net and reducing the phase angle between the output voltage and current to reduce the reflection power of the loads, iv.
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