Digital techniques for writing, drawing and original products are provided.In this method, a three-dimensional object is irradiated by an electromagnetic wave of 750nm to 100mm wavelength range, and the three-dimensional front reflection wave which characterizes the electromagnetic structure of the atomic molecule cluster is extracted, and it is analog-to-digital converted into the peculiar identification data.This identification data can be applied to commodity transactions, disrupting fakes, and applying to identification, positioning, speed measurement, early warning, storage protection, resource evaluation, disaster prevention and mitigation, and national security, regardless of day and night.
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