The board is made from hot pressing the mat and is sanded through fixing thickness,and it is overlaid by phenol formaldehyde resin paper impregnated and covered by phenol formaldehyde resin.是什么意思_The board is made from hot pressing the mat and is sanded through fixing thickness,and it is overlaid by phenol formaldehyde resin paper impregnated and covered by phenol formaldehyde resin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句