See also: 凹线

Chinese

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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

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Noun

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凹線

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