加密文件系统和可信恢复是保障计算机安全，增强操作系统安全性的两项关键性技术，本文集中对这两项技术做了较为深入的研究。
Encrypted file system and trusted recovery are two important technologies for improving the security of OS, and this paper makes a deep research on them.
这个问题部分在于审慎的政策：能更好处理下次井喷的可信保证对恢复墨西哥湾的产业兴隆至关重要。
This is in part prudent politics: credible assurances that a future blowout could be better dealt with will be vital to restoring the industry’s fortunes in the Gulf of Mexico.
这个问题部分在于审慎的政策：能更好处理下次井喷的可信保证对恢复墨西哥湾的产业兴隆至关重要。
This is in part prudent politics: credible assurances that a future blowout could be better dealt with will be vital to restoring the industry's fortunes in the Gulf of Mexico.
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