| 编号 | 候选名词 | 总数 | 文章数 | 重复频率 | 词频弥散 | 来源期刊 |
|---|---|---|---|---|---|---|
| 1 | boundary condition | 78 | 13 | 5.5 | 0.001075 | 0003003,0003029,etc |
| 2 | Einstein' equation | 28 | 11 | 2.5 | 0.000982 | 0003003,0003027,etc |
| 3 | flat spacetime | 26 | 12 | 2.091 | 0.000803 | 0003004,0003025,etc |
| 4 | exact solution | 27 | 12 | 2.182 | 0.00066 | 0003025,0003029,etc |