exterior angle

基本解釋

A second method is to furnish the surfaces with hinges and to use an exterior sector with drilled holes for each angle setting.
第二種方法是在翼面上裝置鉸鏈，用一個對不同安裝角鉆有不同孔的外部扇形件與之配合。
Utilizing the extension of the polygon exterior angle sum theorem, directions of curvilinear polygons were judged and redundant polygons were deleted.
利用多邊形外角定理的推廣，判斷偏置后曲線多邊形的旋向，刪除多余多邊形。
Look the thing that this should be clearly, but demand comes from a client namely (here wants to consider) from the angle of interior and exterior client.
看起來這應該是顯而易見的事，但需求就是來自客戶（這里要從內部和外部客戶的角度考慮）。