An experiment was conducted to study the effects of acid and alkali on paulownia wood color.The protection of weak base solution against discoloration of paulownia wood was also analysed.是什么意思_An experiment was conducted to study the effects of acid and alkali on paulownia wood color.The protection of weak base solution against discoloration of paulownia wood was also analysed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句