If we're installing perforated film on a horizontal storefront window or rear vehicle window, where the width of the window makes it cumbersome to do a top down installation, we change it up a little.
The upper level with both vehicle and pedestrian access was selected as the main entrance, but the narrow width of 'pointing finger' part made another obstacle.
上部有车行和人行通道，因此被选作为主入口，但是“伸出的食指”的狭窄宽度成了另一个障碍。
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The new model is fit for the cases when both the road width and the speed of the leading vehicle are changing about.