Warning: file_put_contents(/www/wwwroot/ppbbbu/oiqp.com/cache/dac73d0e4602cb4989776da166ef00e4.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/oiqp.com/index.php on line 55 ChDI例句_ChDI英汉例句_ChDI双解例句_奇葩剧汉英词典
The properties and synthetic methods of CHDI and the synthesis and performances of CHDI based polyurethane elastomers have been discussed. 笔者论述了CHDI的性质和制备方法,讨论了CHDI型聚氨酯弹性体的合成工艺和性能。