This ruler have one scale in centimetre and another in inch.
这把尺上有厘米的刻度和英寸的刻度。
He drew the map to scale, making one inch represent50 miles.
他按比例画那幅地图，每一英寸代表50英里。
Never has there been a map however carefully executed to detail and scale which carried its owner over even one inch of ground.
一张地图，不论多么详尽，比例多精确，它永远不能带着它的主人在地面上移动半步。
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