作者: Steven Wayne Pierson
DOI:
关键词: Point of interest 、 Geometry 、 Optics 、 Connection (vector bundle) 、 Engineering 、 Square (unit) 、 Protractor
摘要: A measuring tool for determining angles at two points of interest, including an elongate arm and protractors, one protractor rotatably mounted each end the arm. Each includes a flat positioning against interest. The angle point interest is angular measurement between flats, respectively. may include attachment sections, sections connected to respectively, L-shaped guide having three connection selectively receiving retaining in various configurations as desired.