常見(jiàn)例句雙語(yǔ)例句An etching primer based on radiation-treated high viscosity polyvinyl butyral resin has been developed.研究了用輻照技術(shù)処理高粘度聚乙烯醇縮丁醛樹(shù)脂生産磷化底漆。 返回 butyral resin