echo information meaning in English

回声信息量

Applications of digital weather radar echo information to artificial influence on weather
数字化天气雷达回波资料在人工影响天气工作中的处理应用
Do not write error messages that echo information that might be useful to malicious users , such as a user name
不要编写会回显可能对恶意用户有用的信息（例如用户名）的错误信息。
To deal with the echo information from doppler weather radar , in this paper we recommend the processing of some radar products ( cr , vcs , cappi , vil , wer , vwp ) , according to the research of nim on weather radar , referred to other advanced algorithm of radar products from home and abroad and combined with the requirement of application in our country . these products are produced on the platform of windows 98 or windows 2000 by the use of visual c + +
为了对多普勒天气雷达的回波信息(包括强度、径向速度和速度谱宽)进行加工、计算和处理，本文根据南京气象学院在天气雷达方面的长期研究积累，同时借鉴其他国内外先进的天气雷达产品的算法，结合我国气象业务应用的要求，对多普勒天气雷达的气象产品(组合反射率因子、任意垂直剖面、等高平面位置显示、垂直累积含水量、弱回波区显示、 vad垂直风廓线等)进行工程化设计。