名词
中文翻译：平行尺
同义词：
['parallel bar', 'parallel line ruler']
例句：
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1.To draw a straight line, you need to use a parallel ruler.
为了画一条直线，你需要使用平行尺。
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2. The engineer used a parallel ruler to measure the distance between two buildings.
工程师使用平行尺测量了两座建筑物之间的距离。
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3. The construction worker used a parallel ruler to mark the center of the building.
建筑工人使用平行尺来标记建筑物的中心。