A hybrid 3d spatial data model based on multi-DEMs and quasi tri-prism volume (QTPV) is proposed.

提出一种基于多层dem与似三棱柱体元(QTPV)的混合三维数据模型。

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Provocatively, the commission argued that the single transferable vote in multi-member seats, which is the Lib Dems' favoured system, should be used.

ECONOMIST: In one part of Britain a Liberal Democrat is in charge