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английский) 3:
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in general, the x-rays are produced when electrons with high energy ударяются on any object. the rays are not the electrons themselves, but, rather, of the electromagnetic waves. therefore, in the way they look similar to the visible spectrum (i.e. light waves), but their wave length is much shorter. the most famous use of the x-ray is, of course, their use in the medical diagnosis and treatment of teeth. another application of the radiotherapy in which rays destroy malignant tumors or stop their growth.
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