Optimizing casing retrieving depth and side-tracking point by minimum cost method due to different kinds of abandoned Wells.

根据不同类型报废井，按最低成本法优选取套深度和侧斜点。

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When this is the case, this technique of tracking state from one join point to be used in a later one is quite helpful.

在出现这种情况时，一个切入点的跟踪状态可以在后一个切入点中使用这项技术就会非常有帮助。

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Not because it would be too difficult, says Aaron Portnoy, a researcher at the security vulnerability tracking firm Tipping Point, but because it would be too easy.

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The point is that tracking a user through what they do is what adds value to the advertising that is served up to those same users.

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The discussion established that while the B-2 may occasionally be detected by some radars, its stealth technology reduces the radar cross-section of the B-2 to the point where radar tracking of the requisite continuity and accuracy is impossible.

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