Drawing ruler - Protractor 绘图仪尺量角器
Drawing ruler - T-square 绘图仪尺丁字尺
Drawing ruler - Flat ruler 绘图仪尺直尺
Drawing ruler - Drawing template 绘图仪尺绘图模板
drawing with ruler 尺规做图
He was often bent over drawing something on a plank with a ruler and an ink marker.
老陈常常弯着腰，拿了尺子和墨线盒在木板上面画什么东西。
Square the page off with your ruler, then you'll be able to copy the drawing accurately.
先用尺在纸上划出方格，这样你就能把图精确地摹绘下来了。
Square the page off with your ruler , then you'll be able to copy the drawing accurately.
先用尺在纸上划出方格，这样你就能把图精确地摹绘下来了。
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