封锁区 meaning in Chinese

blockade zone
blocked area
cordon area

The argentines had no warning of our readiness to take military action outside the maritime exclusion zone .
阿根廷人事先没有得到警告，不知道我们准备在海上封锁区以外采取军事行动。
In order to organize and command the action of securing submarine to outspread to the back of enemy ' s blockage area exactly , the paper analyzed the process of submarine to outspread and the task of securing it , then erected the relationship of the act of securing submarine , confirmed the manner of commanding , studied the content of securing submarine to outspread
摘要为正确指挥掩护潜艇展开到敌封锁区后作战，对潜艇展开过程进行简要分析，根据潜艇展开的敌情威胁确定掩护兵力的作战任务，从而研究并确定了对潜艇展开掩护行动的指挥组织关系、指挥方式和指挥内容。