能否帮我翻译下面这段英语，谢谢

The channel’s power delay profile is the 3GPP case 3 model scaled 5 times. That is, it decreases in power linearly by 9 dB in 20 taps.

通道的功率延迟配置文件是3 gpp 3模型的扩大5倍。也就是说,它的功率在20个taps内线性减少9 dB。