míng​mǎ

clearly marked

明码 (明碼) míng​mǎ
clearly marked
Commercial prices that are explicitly and transparently displayed.
non-secret code noun
Standardized, non-secret codes used for telecommunications, such as Morse code or ASCII.
plaintext noun
Information that is not encrypted or has been decrypted in the context of cryptography.

Frequency

Movie subtitles
0.120 per million appears in 0% of films
Written text
0.153 per million

Sources

Definitions
CC-CEDICT