For the Digital Decimation Filter of DC, a cascaded structure is proposed.对于ADC中 的数字滤波器部分, 本论文提出了降采样的一种多级级联实现结构.Then by changing the decimation ratio of the SINC filter, frequency selecting is realized.在某一固定输出频率下设计一组带通滤波...
在温暖的环境中，咳嗽和喷嚏传播疾病的速度要快得多。Coughs and sneezes spread infections much faster in a warm atmos-phere.门边的那些人马上同时打起喷嚏来.The people near the door began sneezing all at once.感冒时, 要打很多喷嚏.When you have a cold, you sneeze a lot....
Hemlock, red cedar, and balsam fir are among the other trees found in British Columbia.铁杉 、 红香椿 、 香脂冷杉枞都是发现于英属哥伦比亚的其它树种.The floor was made of polished red cedar wood.这个地板是用抛光过的红衫木制成的.Prepare to stand down sectors Redwood...