Essentially, ping sends an echo packet to the device, and expects the device to echo the packet contents back.

简单地说，ping向设备发送一个echo数据包，期望设备把数据包的内容发送回来。

youdao

In the paper the methods to process weak echo by using DSP technology based on low SNR of laser weak echo are presented. And the methods are simulated and calculated.

文章针对激光弱小回波信号的低信噪比，提出了运用数字信号处理技术对回波信号进行处理的方法，并进行了一系列仿真和计算。

youdao

The model of radar echo signal is founded based on the analysis of SAR imaging theory in this paper. Thereout, a method used to make SAR echo data is put forward.

在分析合成孔径雷达成像原理的基础上，建立了雷达回波信号模型，提出了一种生成回波数据的方法。

youdao

As the president continued his cross-country appeals on health care reform, partisan disagreements continued to echo on Capitol Hill.

VOA: standard.2010.03.10

But the point that I was trying to make was simply that -- and, again, to echo a little bit about what Secretary Gates said, we have -- we obviously have 68, 000 troops there.

WHITEHOUSE: Press Briefing

Criticism of how business schools may have helped create the end of the business world as we know it would seem to echo Gordon-Howell's point about the need for more emphasis on ethics.

ECONOMIST: The Gordon-Howell report of 1959

Bringing fish and seafood from the quay via auctions and wholesalers in curved rows of warehouses through to the end-buyers, it is the last echo of a Tokyo whose loss the governor seems to mourn.

ECONOMIST: Gems of the ocean