不用检查邮件内容，他基于合法邮件与垃圾邮件在传输流量上应有差异的理论来观察邮件在网络中的传输方式。
Instead of examining content, he looks at how messages move through networks, on the theory that the traffic flow of legitimate messages and spam should be different.
这种时空的颗粒性源于超弦理论与环圈量子重力学的最重要差异。
This granularity emerges from what is the most important difference between the two theories.
爱因斯坦的广义相对论所预言的运动与牛顿理论稍有差异。
Einstein's general theory of relativity predicted a slightly different motion from Newton's theory.
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