我们相信用于认证用户的唯一可行的策略是以深度原则应用防御，混合多种认证技术。

We believe that the only viable strategy for authenticating users is to apply the defense in depth principle, mixing a number of authentication techniques.

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关键因素是改变大洋局部的表面温度，通过将底层的冷空气抽到上层或者使用巨大的塑料板，以混合大洋不同深度各层。

The key is to change the ocean's local surface temperature, say, by pumping up deep, cold water or using giant plastic tubes to help mix the ocean layers.

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假设温度上升，不同的海水深度引起的不同的混合和随之而来的膨胀速度，引起显著不同的海平面上升量。

Assuming a given temperature rise, varying ocean depth and therefore differing rates of mixing and consequent expansion will lead to considerable differences in sea level rise.

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