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词汇	reentrant angle
释义	reentrant angle 也作 re-entrant anglen.Mathematics（名词）【数学】angle CBA is a reentrant angleClarinda/Academy Artworks In an irregular polygon, an interior angle that is greater than 180° and whose apex faces into the polygon.凹角：在不规则多边形中超过180度，而且其顶点指向多边形内部的内角
随便看	ngultrums Nguni ngwee ngwees NH NHI NHL NHS ni Ni niacin niacins Niagara Niagara County Community College Niagara Falls Niagara River Niagara University Niagara University Niamey nib nibbed nibbing nibble nibble nibbled

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