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| English | Korean |
| billing frequency | 대금 청구 주기 (The frequency that a billing cycle will be used to create billing invoices for a customer) |
| dual-tone multiple-frequency | 복합 주파수 부호 (The signaling system used in telephones with touchtone keypads, in which each digit is associated with two specific frequencies) |
| frequency hopping | 주파수 도약 (The switching of frequencies within a given bandwidth during a point-to-point transmission) |
| line screen frequency | 스크린 선 수 (The fineness or coarseness of a halftone screen represented by lines per inch (LPI)) |
| radio frequency identification sensor | 전파 식별 센서 (A type of sensor (such as a proximity sensor) that uses radio frequency identification (RFID) for a numerous purposes, such as identification of physical items, automatic log on, location of people, etc) |