| 1. | Heavy metals, such as iron and lead, make good gamma-ray shields because of their high density .
重金属像铁、铅等由于密度很大，都是防护射线的最好的防护材料。 |
| 2. | The modes of interaction of neutrons with matter are quite different from those experienced by gamma-ray photons .
中子与物质的相互作用方式和射线光子完全不同。 |
| 3. | The films are developed and the degree of fogging observed is a measure of the gamma-ray exposure .
经显影之后，可以根据观察到的模糊发黑程度来确定r射线的照射程度。 |
| 4. | The verification regulation of gamma - ray calibrator
自然伽玛刻度器检定规程 |
| 5. | Test procedures for germanium gamma - ray detectors
锗射线探测器的试验程序 |
| 6. | Germanium gamma - ray detectors , test procedures for
锗射线探测器试验程序 |
| 7. | Continuous type environmental gamma - ray monitors
连续式环境射线监视器 |
| 8. | The verification regulation of gamma - ray tool
自然伽玛测井仪检定规程 |
| 9. | Industrial gamma - ray apparatus for radiography
工业用射线照相装置 |
| 10. | Test method for high - resolution gamma - ray spectrometry of water
水的高分辨率射线能谱测定方法 |
