Generalized Method of Solution to Inherent Frequencyof Column that Have the Same Section and Qualityof Even Distribution Oscillating in Miniamplitude是什么意思_Generalized Method of Solution to Inherent Frequencyof Column that Have the Same Section and Qualityof Even Distribution Oscillating in Miniamplitude在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句