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The line junctions in these letters, when found in nature, provide valuable spatial information, such as whether an object is in front of or behind another.

线条汇合成了这些字母，在实际生活中，他提供了有用的空间信息，比如说确定一个物体在另一个的前面还是后面。

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For example, an image of the scene behind an object was projected on a screen in front of it, " he says.

举例来说，就是将物体身后的景象投射到它前面的屏幕上，”他说道。

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The scale measures if a child can follow an object in front of them along with mannerisms and posture that are early indicators of autism.

FORBES: Connect

Take a look at an object in front of you.

FORBES: SP: Why Cadillac?

Kepler flags exoplanet candidates via the transit method, which looks for dips in a star's brightness caused by an object crossing in front of it.

MSN: Kepler telescope adds 41 planets to its list - Technology & science - Space - Space.com | NBC News