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。
2
Sodium Acetate (Anhydrous) is odorless white granular powder. It is hygroscopic and is used as acidity regulator and buffering agent.