隐藏的
occult
absconditus absconditum
absconditus
cryptic
cryptic coloration cryptic
Underground
hidden
Perdue
concealed
材料中缺陷的认可
repairs
approval of defects in material
防火性能的缺陷
shortcomings of fire-proof performance
腹白线内面的缺陷
internal defect of white line
具有缺陷的不可压neo-Hookean材料
Keywordimperfect incompressible neo-Hookean material