名词
中文翻译：直角尺
同义词：
['rectangular ruler', 'straightedge']
例句：
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1. He used a rectangular ruler to measure the length of the wall.
他用直尺测量了墙的长度。
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2. The engineer used a rectangular ruler to draw the sketch.
工程师用直尺画了草图。
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3. The carpenter used a rectangular ruler to mark the corners of the table.
木匠用直尺标记桌子的角落。