缩放
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定义
通过一致的比例因子对测量值进行乘或除，以在不同尺寸、表示方式或单位之间转换，同时保持相对关系不变。
解释
A 1:50,000 map means every 1 cm on the map represents 50,000 cm (500 m) on the ground. Doubling a recipe scales all ingredient quantities by a factor of 2. In engineering, stress scales with the square of linear dimension — a bridge twice as tall must carry four times the wind load per unit area, which is why small models don’t predict full-scale structural behavior without scaling corrections.
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