Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/3595908bb3bf0204b204b7c104d852c7.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 meltingpoint例句_meltingpoint英汉例句_meltingpoint双解例句_94生活常识网有道词典
Results show that reaction velocity, intrinsic viscosity of PET, carbonyl content and meltingpoint increase with the amount of catalyst. 研究结果表明，随着催化剂用量增加，反应速度提高，PET的特性粘度、羧基含量和熔点均有所提高。