By collecting Pigou tax, the exterior problems of the environmental pollution are solved to compensate the gap between the public cost and the private cost.

通常采用征收庇古税的方法来解决环境污染的外部性问题，以弥补社会成本与私人成本的差额，但是不能与实际的减污效果相联系。

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The system of collecting individuals information must be conflict with the private right of informations main body when system collecting, cleaning up and opening individuals information.

个人征信体系在对个人信息的收集、整理、公开的过程中必然会与信息主体的隐私权发生冲突。

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The problem of collecting and delivery shunting of non-through wagon flow on the actinoid private line belongs to a kind of the combinatorial optimization problems.

放射形专用线非直达车流取送车问题属于一类组合优化问题，影响因素较多。

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For those interested in this field but averse to private collecting, the best place to see militia regalia is Old Sturbridge Village (www.osv.org) in Sturbridge, Mass.

FORBES: Magazine Article

In April 2010, Google denied that it was collecting private data from Wi-Fi users, but it reversed itself the following month.

WSJ: Google Engineer Told Others of Data Scoop

The second would be to take what you search for anywhere on Google private, so that the service stopped collecting your data and customizing what you would see.

FORBES: Google, Obama & The Online User Manifesto