The aperance and the mechanic properties of epoxy resin and low molecular polyamide adhesive system would be affected by the addition of mannich amide.是什么意思_The aperance and the mechanic properties of epoxy resin and low molecular polyamide adhesive system would be affected by the addition of mannich amide.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句