边境争端 border dispute

极端环境 extreme environment ; extremity environment

极端环境任务行动 NEEMO

远端环境 distal environment

极端环境中的建筑 Houses in Extreme Places

虚拟终端机环境 virtual terminal environment ; environment, virtual terminal

极端困境 extreme hardship

终端操作环境 terminal operation environment

沙漠和其他极端环境 Deserts and other extreme environments