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1·Lumped constant is the important parameter for the measurement of metabolic rate and is affected by many factors.

集总常数是进行代谢率测量的重要参数，受到多种因素影响。

2·For fast and accurate design and production of lumped constant bandwidth frequency-hopping(FH) narrowband filter, a load structure changing with frequency is introduced.

为了快速准确地设计并制作恒带宽窄带集总跳频滤波器，提出了一种随频率变化而 变化的负载结构。