And the sound isolation of composite structures consisting of multilayer Pb-soft rubber and steel-butadience acrylnitrile rubber(NBR) is presented.是什么意思_And the sound isolation of composite structures consisting of multilayer Pb-soft rubber and steel-butadience acrylnitrile rubber(NBR) is presented.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句