Englisch ⇄ Chinesisch Englisch Spanisch +

signal operating instructions
Tech.	instrucciones de operación de las transmisiones; órdenes para el servicio de transmisiones
Englisch Thesaurus
Signal Operating Instructions
Mil., Abkürz.	SOI
signal operating instructions
USA	A series of orders issued for technical control and coordination of the signal communication activities of a command. In Marine Corps usage, these instructions are designated communication operation instructions (JP 6-0)