echoing

n.

回声[波]现象，反照现象；

v.

重复，随声附和( echo的现在分词 )；类似；发射（声音等）；发出回声

radar echo雷达回波

echo cancellation回波消除

ultrasonic echo超声回波；超声回声

echo sounder回声测深器

flaw echo缺陷回波；缺陷的回波信号；缺陷回声

echo effect回声效应；回音效果

echo wall回音壁

echo chamber回音室

QFD: Echoing the voice of the customer
Echoing emergence: objectives, rough definitions, and speculations for ECHO-class models
No Shades of Gray: The Binary Discourse of George W. Bush and an Echoing Press
Radar Echoing Area Polar Diagrams of Birds
Quadrupolar nuclear magnetic resonance spectroscopy in solids using frequency-swept echoing pulses
Echoing Our Parents: Parental Influences on Children's Narration.
Echoing and scaling in Einstein-Yang-Mills critical collapse
Formation of mesospheric VHF echoing layers due to a gravity wave motion
Imitation and echoing in young schizophrenic children.
Constant current sources with programmable voltage source