Instead of encrypting everything with the same key strength regardless of needs, rich clients can establish a comprehensive differentiating security policy based on the content.
2
网络总体安全性的强度取决于其最薄弱的环节，而在移动商业网络中，最薄弱环节是客户机端设备。
The overall security of a network is only as strong as its weakest link, and in a mobile-commerce network the weakest link is the client-side device.
3
摄像机连接到一台电脑，电脑通过微调电场强度，锁定相应增加的能量，同时储存相关的信息。
This was connected to a computer, which tweaked the electric field so as to lock in the corresponding energy gain, storing information as it did so.
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