... 相对地质时期 relative geologic time; 相对电平 relative level; 相对电容率 relative permittivity; ...
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本文从相对电平的观点出发，提出了一种沃尔什码分多路信号多电平压缩的新方法。
From the point of view of relative level, this paper proposes a novel approach for the multilevel compression in Walsh code-division multiplexing digital communication.
第二部分介绍了当存在相对高的测量系统噪声（示波器噪声）电平时，如何进行更精确低电平信号噪声和干扰测量的有用提示。
The second part is to introduce the useful prompt to measure the low level signal noise and its disturbance even more accurately when there is rather high noise level in measure system.
对于不同的重复频率，与目标相对抗的杂波距离是不同的，因而对天线旁瓣电平的要求也不一样。
The antenna sidelobe level requirements are different for different PRFs because the ranges within which the sidelobe clutter competes with the target signal are different.
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