三角尺 set square ; Triangle ; three edged rule ; TriangleRuler

活动三角尺 adjustable triangle

有机玻璃三角尺 acrylic glass set square ; acrylic gla set square

直角三角尺 drawing square ; drawing g square

三角形直角尺 threeangle square ; three angle square

塑料三角尺 plastic set square

三角比例尺 triangular scale

三角计算尺 log trig slide rule

木质三角尺 Lignin three-edged rule ; Wooden ruler triangle ; Wood set square

三角学尺 set square