The functional principle of measurement receiver and the main parameters affecting measurement results were presented.
2
不幸的是，一种仪器并不总是存在可更换的目标，例如，HP8902A RF测量接收机。
Unfortunately, a replacement instrument isn't always available. Take, for example, the HP8902A RF measuring receiver.
3
为了满足大衰减量值的溯源，研制成功了新的PAS 1型衰减测量接收机和新的国家标准装置。
In order to meet the traceability of large attenuation, a new model PAS-1 attenuation measuring receiver and then a new national attenuation standard system are developed.
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