中国大学MOOC: 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?
举一反三
- 中国大学MOOC: 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
- 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? X线能量X-rays' energy|X线频率X-rays' frequency|物质和距离Material and distance|X线波长X-rays' wavelength
- X线通过物质时强度减弱,其衰减程度与( )无关。
- X线通过物质时强度减弱,其衰减程度与( )无关 A: X射线能量 B: 组织的有效原子序数 C: X射线线束的宽度 D: 物质的每克电子数
- 中国大学MOOC: 导致X线穿过物质时衰减的原因是The reason for ...ough the material is