sheathing（望板）是什么意思？音标发音+图解场景

望板 /ˈʃiːðɪŋ/ n

English: sheathing · 望板

释义：Wall covering attached directly to the frame serving as a base or support upon which to nail other facings.

这个词出现在以下图解场景（2）

房屋地基结构 房屋框架结构