Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/ea5a0d3f537df6a4fcf6d3d0128a9106.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/index.php on line 55 hygroscopic agent例句_hygroscopic agent英汉例句_hygroscopic agent双解例句_流逝汉英词典
The hygroscopic mechanism of composite plates with annual plant fibre was studied in this paper, and a new type of waterproofing agent (GM-1) was developed. 本文对一年生植物纤维复合板的吸水机理进行了探讨，并研制了新型防水剂GM—1。