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attenuation
attenuation
1.
X线通过物质时强度减弱，其衰减符合（）When X-rays travel through a materail, what is the law of its attenuation?（）
2.
导致X线穿过物质时衰减的原因是（）The reason for the attenuation of X-rays through material is（）
3.
导致X线穿过物质时衰减的原因是（）The reason for the attenuation of X-rays through the material is（）