The army said the AR system could help troops gain an upper hand during battle.

美国陆军表示，AR系统可以帮助部队在战斗中获得优势。

The army said the AR system could help troops gain an upper hand during battle. Soldiers first tested the gadgets last year.

美国陆军表示，增强现实系统可以帮助部队在战斗中占据优势。士兵们去年首次测试了这些设备。