单词 | set square |
释义 | set squarenoun British 1A right-angled triangular plate for drawing lines, especially at 90°, 45°, 60°, or 30°.It was here that Burlington kept his collection of architectural plans and the painting on the ceiling reflects this interest through the personification of the subject, surrounded by set squares and plumb lines....
1.1A form of T-square with an additional arm turning on a pivot for drawing lines at fixed angles to the head.They used iron chisels, saws, drills, and callipers, set squares and plumb lines....
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