In these cases, filters can be added to the switch to modify the signal frequency bandwidth, or spurious signals at unwanted fre quencies can be eliminated from the signal to the DUT.
在这些情况下，可向开关加入滤波器来改变信号的频率带宽，或者从发射到DUT的信号中消除有害频率的杂散信号。
If you liked this page, please feel fre to give it a thumbs up, I'd be hugely appreciative.
如果您喜欢这个页面，请觉得频率给它一个大拇指，我愿意非常赞赏。
The results showed that: leaching was beneficial to soil mineralization, but the accumulation of the nitrogen mineralized in the soils would not be higher with increasing of the leaching fre...
结果表明：淋洗有利于土壤氮素的矿化过程，但淋洗频率过快并没有造成土壤氮素矿化量的显著增加。
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