 |
| |||
| primary sources (Published and unpublished records without secondary interpretation or commentary) | |||
| original sources; primary literature | |||
| |||
| primary radiator | |||
| aerial feed; antenna feed | |||
|
sources primaires : 8 短语, 4 学科 |
| 地球科学 | 2 |
| 能源行业 | 2 |
| 财政 | 1 |
| 通讯 | 3 |
|
| |||
| primary sources (Published and unpublished records without secondary interpretation or commentary) | |||
| original sources; primary literature | |||
| |||
| primary radiator | |||
| aerial feed; antenna feed | |||
|
sources primaires : 8 短语, 4 学科 |
| 地球科学 | 2 |
| 能源行业 | 2 |
| 财政 | 1 |
| 通讯 | 3 |