set set square三角板
set-square三角板;斜角规
universal set-square万能三角板
set t square三角板;三角尺
set-square-difference集合稀疏差异度
acrylic glass set square有机玻璃三角尺
Wood set square木质三角尺
acrylic gla set square有机玻璃三角尺
N(名词) a thin flat piece of plastic, metal, etc, in the shape of a right-angled triangle, used in technical drawing 三角板