carbon paper
US /ˈkɑːr.bən ˌpeɪ.pər/
UK /ˈkɑːr.bən ˌpeɪ.pər/
1.
papel carbón, papel de calco
a thin paper coated with a waxy pigment, used for making a copy of a document as it is being written or typed
:
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She used carbon paper to make a duplicate of the invoice.
Ella usó papel carbón para hacer un duplicado de la factura.
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Old typewriters often required carbon paper for copies.
Las máquinas de escribir antiguas a menudo requerían papel carbón para las copias.