“back-echo reflection”的概念、定义、翻译、参考文献-科学参考

单词	back-echo reflection
释义	back-echo reflection [`bak ´ek·ō ri`flek·shǝn] ^ELECTRONICS A radar echo produced by radiation reflected to the target by a large, fixed obstruction; that is, the ray path is from antenna to obstruction to target to antenna, instead of antenna to target to antenna.
随便看	tilt slab construction tilt-up construction timber timber connector timbered stope timbering timbering machine timberline timber mat timber packer timber puller timber trolley timber truck timbre time time-and-altitude azimuth time and material contract time and motion study time assignment speech interpolation time-average holographic interferometry time azimuth time base time-base generator time break time-change component

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