求翻译：投影:“影”是光的遮断，即光线照射在物体上，这个物体的影子投在另一物体上，遮去了部分光线，因此在另一物体上留下主物体的影子，所以把影称为“投影”。是什么意思？

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Projection: "shadow" is a light shielding the light, that is the object in the objects shadow of another object in the shade to the light, and it is therefore part in another object, the objects left the shadow, so the film is called "projection".

Projection: “The shade” is the light interdiction, namely the light shines on the object, this object shadow throws on another object, obstructed the partial lights, therefore left behind the principal object body on another object the shadow, therefore was called the shade “the projection”.

Projection: "shadow" is the trip of the light, that is light on the object, this object on another object shadows, shade some light, so leave shadow of the Master object on another object, so refer to the film as "projection".

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