perspectograph的翻译，读音
英/pә'spektә^rɑ:f; -^ræf/
释义：
n. 透视画绘图器
n. An instrument for obtaining, and transferring to a
picture, the points and outlines of objects, so as to represent them in
their proper geometrical relations as viewed from some one point.
n. An instrument for obtaining, and transferring to a
picture, the points and outlines of objects, so as to represent them in
their proper geometrical relations as viewed from some one point.