Those who make the connection between size and safety point out that after slimming down in the 1980s, the average American light-duty vehicle has bulked up over the past two decades.

那些人认为为车的大小和安全性相关的人指出，车型在二十世纪80年代变小，但此后二十年美国轻型车的平均尺寸又增大了。

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The relationship between the size of a light point and the bar width of a rotation grating is given with mathematical analysis.

通过数字分析，我们得出了光点大小和旋转光棚线宽之间的关系式。

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At this point you've perhaps been slightly misled: it's not really the physical size of the light source that matters - just its apparent size relative to the subject.

在这一点上你也许有些误导：这不是真正的物理尺寸问题的光源——只是其明显的大小相对的主题。

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