The performance of Direct Sequence Spread Spectrum(DSSS) in severe pulsed noise interference will be badly degraded when the duty factor is small.
当脉冲干扰占空比较小时，干扰能量集中，导致直接序列扩频（DSSS）系统的误码性能较差。
Functional groups of the oxidizing degraded products of Black Wattle extract have been studied by using chemical classified tests, IR spectrum and conductivity titration methods.
通过“化学分类试验”与红外、电导滴定法等联用，对荆树皮栲胶不同氧化降解程度产物的官能团进行了研究。
UV-Vis spectrum indicated that the phenyl structure and naphthyl structure of methyl orange were destroyed, methyl orange solution was degraded.
通过处理前后的紫外可见光谱图可见，甲基橙具有的苯环结构和萘环结构被破坏，从而表明甲基橙已经被降解。
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