| 名称: | |
| 描述: | |
| 公开/私有: | 公开 私有 |
| 标题: | |
| 描述: | |
| 公开/私有: | 公开 私有 |
检索词:
U. S. Dept. of Commerce,
,
检索到: 6 条结果,
检索时间: 2.909 秒
,
排序选项:
排序方式:
隐藏分类导航
- 西文期刊馆外流通库1 (1)
馆藏地点
- ionospheric radio wave propagation (2)
- periodicals (2)
- radio meteorology (2)
- science (2)
- engineering (1)
- government publications as topic (1)
- research (1)
- space flight (1)
- technology (1)
- united states (1)
主题
| 1. |
|
出版社:
U.S. Department of Commerce, Bureau of Economic Analysis
出版日期: l92l-
文献类型:
|
|
| 2. |
|
|
|
| 3. |
|
|
|
| 4. |
|
|
|
| 5. |
|
|
|
| 6. |
|
|