| ประโยคภาษาจีน : 中文句子 | 
|---|
|  jù ān zhǐ聚氨酯  yù jù wù预聚物  duì对  fēn quán酚醛  pào泡  mèi沬  sù jiāo塑胶  de的  gǎi xìng改性  jī lǐ机理  bú shì不是  jiǎn dān简单  de的  wù lǐ物理  gòng共  hùn混  tóng shí同时  bàn yǒu伴有  gòng jù共聚  fǎn yìng反应  fā shēng发生 | 
| The mechanism of the modification was studied and the result revealed there existed not only a physical blend but also a copolymerization between the phenolic resin and the urethane oligomer. |