backward wave magnetron 返波式磁控管 ; 回波磁控管
backward-wave crossed-field amplifier 返波正交场放大管
backward wave [电子] 返波 ; 后向波 ; 逆向行波
backward wave tube 返波管 ; 回波管
backward wave amplifier 返波放大器 ; 回波放大器
backward-wave oscillation 返波自激振荡
backward wave mode 返波模式
backward-wave effect 回波效应
It is shown that the high efficiency and weak dispersion of backward-wave oscillations can be accounted for by induced a plasma photonics crystal.
数值计算发现，等离子体光子晶体对色散有很大的影响。
Researchers say that a "backward traveling wave" can explain why traffic jams sometimes appear seemingly out of nowhere. Cynthia Graber reports.
研究人员称“反向驾驶浪潮”能够解释为何交通阻塞有时候似乎好像无缘无故的出现。
Third-order susceptibility has been determined by the ratio of the input probing beam in tensity to the backward wave intensity in four-wave mixing.
通过测量后向反射波与入射波的强度比，可以确定介质的三阶极化率。
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