... surface irregularity 表面变形,表面奇点... frequency irregularity 频率不规则性... yarn irregularity 纱线条干不匀率...
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frequency interleaved irregularity 频率不规则性
·2,447,543篇论文数据，部分数据来源于NoteExpress
The catenary irregularity is researched from time-frequency analysis of the data detected based on existing research results of track irregularity and track spectrum.
在已有轨道不平顺和轨道谱研究成果的基础上，从接触网不平顺检测数据的时频分析方面对接触网不平顺进行了研究。
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