What is more, whether the percentage of PAN fiber composite is 0.2% or 0.3%, the performance of SMA is stable.是什么意思_What is more, whether the percentage of PAN fiber composite is 0.2% or 0.3%, the performance of SMA is stable.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句