电影经历了艰苦的边缘和细节丢失，从而只是一个粗略近似真实的事情。

Pictures had a rough edge and details were missing, giving only a rough approximation of the real thing.

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随后将获得三条粗略定义的角边，用于定义指向图像中心的近似的等边三角形。

Three roughly defined corner edges are then acquired that define an approximately equilateral triangle pointed at the center of the image.

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看，这是物理学中的一种标准方式——首先通过一些计算来近似地得到粗略的结果，然后物理学家再根据给出的物理系统的行为方式来逐步完善这个模型。

Then physicists can refine the model bit by bit, according to how given physical systems are known to behave.

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