This famous illusion is known as the twisted cord or false spiral illusion.
这个著名的错觉被称为扭曲的螺旋线或者虚假的螺旋幻象。
Because of the inevitable blur of a optogram, some geometric figures composed of intersection lines are of twisted cord illusions in reality.
这使得由于光学及视网膜的结构特点的原因使视网膜的像上模糊，某些由相交线构成的几何错觉图形，实际上是类“拧绳”错觉图形。
Fine cord of a fibrous material, such as cotton or flax, made of two or more filaments twisted together and used in needlework and the weaving of cloth.
由两根或多根拧到一起的丝组成的纤维状物质的细丝，如棉花或亚麻丝，用于针织品和编织物。
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