| 31. | an atomic mass |
| （物）原子质量
|
| 32. | atomic [nuclear, radiation, radiological] medicine |
| 医疗辐射学
|
| 33. | the atomic bomb industry in Tennessee |
| 天纳西州的原子弹工业
|
| 34. | a $ 450 million item for the further development of atomic energy |
| 进一步发展原子能的4.5亿美元的(预算)项目
|
| 35. | give up the atomic secrets |
| 泄露原子机密
|
| 36. | the nature of atomic energy |
| 原子能的性质
|
| 37. | the atomic number |
| 原子序数
|
| 38. | atomic nucleus |
| 原子核
|
| 39. | an atomic fission plant on a laboratory scale |
| 原子裂变试验装置
|
| 40. | an atomic power plant |
| 原子能发电厂
|