Figure 11-12: Clear spatial mapping.On this stovetop, it is clear which knob maps to which burner because the spatial arrangement of knobs clearly associates each knob with a burner.

• 图11-12 清晰的空间位置映射，在炉顶上旋钮和火眼的映射关系非常清晰，因为旋钮的空间布局清晰地将旋钮与火炉联系起来了。