要把光被捕获在两维的曲线状表面上时，要求物体表面非常平滑，才足以把大部分光线干净利落地反射进油层而不是分散在所有的各个角度上。

For the light to be trapped in two dimensions, the object's surface needed to be smooth enough to cleanly reflect most of the light into the oil layer rather than scattering it at all angles.

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为了解决这个问题，我们可以通过按习惯降低三角支架(靠近鼓手的一个)使落地桶鼓和地板形成轻微的角度；见图2，这会让声波反射稍微分散。

To minimize this problem, Angle the floor Tom slightly by lowering the triangular height rod (the one nearest the drummer) to taste; see Figure 2. This causes the waves to scatter somewhat.

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机场于是转而清出空间，将电子票务服务站和柜台摆放成一个通向航厦入口的角度，分散要搭飞机的旅客。

Instead, airport are clearing out the space, setting electronic kiosks and counters at an Angle to the entryway, and spreading out passengers needing to catch their planes.

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