| 编号 | 全称 | 缩写 | 总数 | 文章数 | 词频弥散 | 来源期刊 |
|---|---|---|---|---|---|---|
| quasar absorption systems | QAS | 24 | 3 | 2.000392 | 9603105,9603070,etc | |
| broad emission line region | BELR | 17 | 3 | 1.0012 | 9603055,9603057,etc | |
| hopkins ultraviolet telescope | HUT | 21 | 3 | 2.000707 | 9603055,9603057,etc | |
| large area detector | LAD | 6 | 3 | 1.000331 | 9603154,9603112,etc |