但是在引信信号侦察接收中，频率的精确测量是很困难的。

But it's difficult to measure the frequency accurately in the signal's scout and reception.

youdao

在UW B脉冲信号的角度分集接收中，通常的空时处理中通道时延不易精确地控制。

In usual spatial-time processing for diversity reception of UWB pulses, the channel delays are not easy to be implemented accurately.

youdao

本文首先给出寻呼接收中同步和节电的数学模型并将其应用到POCSAG、FLEX及ER-MES等寻呼系统；

The mathematical models of power saving and synchronization in paging receiving are summarized and applied into POCSAG, FLEX, ERMES and other paging systems.

youdao

Here, what's different between autocrine and paracrine is that there's some distance between the cell that produces the signal and the cell that receives the signal, but it's not too great a distance because the blood system doesn't have to be involved.

自分泌和旁分泌的区别在于,旁分泌中,产生信号的细胞和接收信号的细胞,之间存在着一定的距离,但这个距离并不远,因为血液系统并不参与

耶鲁公开课 - 生物医学工程探索课程节选