如图,你能说出木工用图中的角尺画平行线的道理吗？ 木工师傅用角尺画出工件边缘的两条垂线，就可以找出两条平行线，...
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利用两条平行线之间的距离都相等两条平行线之间的距离相等
两条平行线之间的距离都相等
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