广告商将会为一个独有的广告位置付一个有意义的CPM（千人成本），从而去掉了Xfire商业模型的风险，这一状况也部分地解释了为什么Xfire有很高的估值溢价。
Xfire’s premium exit valuation can be partially justified by the fact that Xfire had “de-risked” the business model by demonstrating that advertisers would pay a meaningful CPM for a unique ad spot.
记住法律只是要求公司准许你回到相同或类似的位置，并没有要求公司在你离开期间付你薪水。
Keep in mind that the law only requires your company to allow you to return to the same or a similar position. It does not require them to pay you during your leave.
在此其础上，对“光栅付相对位置偏差——信号质量”变化规律进行了全面的分析验证，得出一系列表示这种变化规律的传递公式。
The law of variation in the signal with relative placement deviation of the two gratings is analysed and proved sufficiently. And a series of the equations about this law is given.
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