See also: 凹线

Chinese edit

 
a depression; indentation; concave
a depression; indentation; concave; hollow
 
thread; string; wire
thread; string; wire; line
trad. (凹線/凹綫) /
simp. (凹线) 线

Pronunciation edit


Noun edit

凹線

  1. groove (in an LP record, a piece of wood, etc.)