According to the vertical detection ionograms, use POLAN to calculate the real-height profile of the ionosphere.

根据电离层垂测图，利用POLAN程序反演获得电离层的实高剖面。

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There is no polan that balances the budget without relying on growth, so where are we going to get this growth without educated people?

FORBES: The Election of the Ant and the Grasshopper

Susan Polan of Illustrated Properties calls the home "magnificent" but says the price is aggressive given its location near airplane paths and the lack of immediate access to a beach or yacht dockage.

WSJ: Palm Beach Mansion Asks $74 Million | Private Properties