signal reporting code造句

例句与造句

1. Both SINPO and SINPFEMO are the official signal reporting codes for international civil aviation.
2. "' SINPO "', acronym for "'signal, interference, noise, propagation, and overall "', is a Signal Reporting Codes used to describe the quality of radio transmissions, especially in reception reports written by shortwave listeners.
3. It's difficult to find signal reporting code in a sentence. 用signal reporting code造句挺难的