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。
Sodium Acetate (Anhydrous) is odorless white granular powder. It is hygroscopic and is used as acidity regulator and buffering agent.
无水乙酸钠，是白色无臭颗粒状粉末，易吸湿，用作酸度调节剂、缓冲剂等。
Sodium Acetate (Anhydrous) is odorless white granular powder. It is hygroscopic and is used as acidity regulator and buffering agent.
无水乙酸钠，是白色无臭颗粒状粉末，易吸湿，用作酸度调节剂、缓冲剂等。
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