When data is flowing through a vulnerable environment, many of the available operating systems for phones and handheld devices offer little or no security.
当数据在易受攻击的环境中流动时，电话和手持设备的许多可用操作系统只能提供很少的甚至无安全性。
Urban subaqueous highway tunnel, not only subaqueous, but also in urban area, is a typical geotechnical engineering in vulnerable environment.
城市水下交通隧道，既在城市，又于水下，是一种脆弱环境下的典型的地质工程。
Urban subaqueous highway tunnel, not only subaqueous, but also in urban area, is a typical geotechnical engineering in vulnerable environment.
城市水下交通隧道，既在城市，又于水下，是一种脆弱环境下的典型的地质工程。
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