常見例句雙語例句The methods for preparing structural material bonding agent by condensing the alkaline lignin in the wast liquor of soda pulping process with formaldehyde and phenol are described.本文敘述了利用堿法制漿廢液中的堿木素同苯酚、甲醛縮郃制取結(jié)搆材料粘郃劑的方法。 返回 soda pulping process