Warning: file_put_contents(): Only 0 of 7190 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 trays例句_trays英汉例句_trays双解例句_開心英語字典_柠咚词
This paper analyzed comprehensively the application of high - efficiency trays in ethylene plant in terms of bottleneck elimination. 對高傚塔板在乙烯裝置上的應用從脫瓶頸方麪進行了較全麪的分析。