log mean meaning in English
平均基数
Examples
- Log mean divisia index method was adopted to analyze the effects of activity level , market share and energy intensity of various transportation systems on energy consumption of passenger and fright transportation
本研究的目的在于?集整理运输部门的运输活动量与能源消费量，并就各运输系统的延入公里数及延吨公里数进行推估。