Meaning of Chappe system | Babel Free
Definitions
A system of telegraphy consisting of a large pivoted beam (the regulator) with an arm at each end (the indicators) which pivoted around the regulator on one extremity.
historical
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.