wrinkling

n.

a slight depression in the smoothness of a surface

"ironing gets rid of most wrinkles"

同义词：furrowcreasecrinkleseamline

a minor difficulty

"they finally have the wrinkles pretty well ironed out"

a clever method of doing something (especially something new and different)

Letter: Skin wrinkling in cystic fibrosis.
Geometry and Physics of Wrinkling
Nested self-similar wrinkling patterns in skins
Thin films. Wrinkling of an elastic sheet under tension.
Kinetic wrinkling of an elastic film on a viscoelastic substrate
Surface wrinkling: a versatile platform for measuring thin-film properties.
Nested self-similar wrinkling patterns in skins. Nat Mater 4:293-297
Fabricating Microlens Arrays by Surface Wrinkling
A power-law flame wrinkling model for LES of premixed turbulent combustion Part I: non-dynamic formulation and initial tests
Mechanics of morphological instabilities and surface wrinkling in soft materials: a review