אנגלית ⇄ אנגלית סינית ספרדית +

signal operating instruction
.מֶרחָ	信号操作指令
אנגלית אוצר מילים
Signal Operating Instructions
.נוֹטָ	SOI
signal operating instructions
.ארצות	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)