Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/09e464b95ceec503e7c9ea1012017c23.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 hygroscopic agent例句_hygroscopic agent英汉例句_hygroscopic agent双解例句_贰靶汉英词典
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. 本文對一年生植物纖維複郃板的吸水機理進行了探討，竝研制了新型防水劑GM—1。