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Drafting triangle
01
绘图三角尺, 制图三角板
a triangular ruler used for drawing straight lines and angles, commonly available in 30-60-90 and 45-45-90 degree configurations
Example
The architect used the drafting triangle to create the precise 45-degree angle on the blueprint.
For the building plans, the draftsman carefully measured the angles using a drafting triangle.
