英语词汇international roughness index怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	international roughness index
释义	international roughness index 简明释义国际平整度指数；国际糙度指标网络释义 1 ?度指数 IRI是国际道路不平度指数（International Roughness Index）的缩写。IRI评价指标以四分子一车辆为数学计算模型，得到位移、速度、加速度关系的两阶微分方程，由此方程得到一个四维方程组。短语 1 international roughness index IRI 国际平整度指数双语例句 1 The correlation between the standard classified road power spectral density (PSD) and international roughness index (IRI) was discussed by using regressive analysis. 通过回归分析的方法对标准分级道路功率谱密度与相应国际平整度指数之间的关系进行了研究。
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