The investigations show that the secondary maintenance for steel pipe piles by the methods of underwatercoating and drainage covering ia an effective measures.
研究表明，采用水下涂料和排水护套法对钢管桩进行二次维护是行之可效的。
2
Isolating-sound and decoupling coating is a important underwater acoustic material and structure, and it is coated the outer surface of the submarine body which is used to support sound press.
隔声去耦覆盖层是一种重要的舰船水声材料与结构，敷设于潜艇艇体耐压壳外表面。
3
The acoustic reflection characteristics of the underwater anechoic coating with cavity are researched in different backings and cavity types, and effects of structure are also analyzed.