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文章主要介绍程控正弦功率电压源和电流源校表仪的原理。
This paper describes the principle of sin voltage source and current source that can be programme controlled.
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.
所有真实的电压源和电流源都具有内阻，所以它们都表现出约翰逊噪声。
All real voltage and current sources contain an internal resistance; therefore, they exhibit Johnson noise.
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