Yuav daws qhov teeb meem ntawm Wrinkling thiab npuas thaum daim ntawv lo yog laminated?
Hauv tsab xov xwm no, peb yuav tshawb nrhiav cov laj thawj thiab cov kev daws teeb meem rau cov teeb meem ntawm wrinkling thiab brittle laminations.
Hnub: Lub Xya Hli 9, 2023