“sheathing” 常指覆盖层/护面层:用于保护、包裹或加固表面的材料层(如屋顶/墙体的护面板、管线的护套、船体外包层等)。也可指“包裹、覆盖”的动作或过程。
/ˈʃiːðɪŋ/
The builders installed sheathing on the walls.
工人们在墙体上安装了护面板。
After the storm, inspectors found the roof sheathing had warped, allowing moisture to seep in and damage the insulation.
暴风雨后,检查人员发现屋顶护面层已经翘曲,导致水分渗入并损坏了保温材料。
来自 sheath(鞘、套、外壳)+ -ing(名词后缀,表示“……的行为/过程/材料”)。sheath 源于古英语 scēað,本义与“包裹、容纳、保护的外层”相关,因此 sheathing 强调“用外层覆盖以保护”的含义。