The conclusions are (1) The scale factor of frequency between large and small perspex model test accord with similitude law basically. The error of primary frequency is 2.7% or 4.1%, the error of the second frequency is 0 or 6.05%.是什么意思_The conclusions are (1) The scale factor of frequency between large and small perspex model test accord with similitude law basically. The error of primary frequency is 2.7% or 4.1%, the error of the second frequency is 0 or 6.05%.在线翻译_英语_读音_用法_例句