全文获取类型
收费全文 | 150篇 |
免费 | 0篇 |
国内免费 | 2篇 |
专业分类
航空 | 54篇 |
航天技术 | 59篇 |
航天 | 39篇 |
出版年
2021年 | 7篇 |
2019年 | 7篇 |
2018年 | 12篇 |
2017年 | 4篇 |
2015年 | 1篇 |
2014年 | 2篇 |
2013年 | 6篇 |
2012年 | 8篇 |
2011年 | 16篇 |
2010年 | 5篇 |
2009年 | 2篇 |
2008年 | 6篇 |
2006年 | 3篇 |
2005年 | 10篇 |
2004年 | 6篇 |
2003年 | 4篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1999年 | 4篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1992年 | 2篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 9篇 |
1983年 | 2篇 |
1982年 | 4篇 |
1981年 | 13篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有152条查询结果,搜索用时 15 毫秒
151.
M.M. Császár 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1981,1(4):309-312
Two procedure are presented for quantitative estimation of cloud cover (N), type of clouds (C), as well as base of clouds (Cb) and top of clouds (Ct) by using radiosonde data as well as satellite cloud pictures and radiation data. The data obtained in this way can be used as input data in the model for the estimation of the vertical profile of longwave radiative cooling. 相似文献
152.
Román Alvarez 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1983,3(7):113-117
Remote sensing is a data gathering and analysis technique that offers the possibility of natural resource evaluation. Countries that have not yet evaluated their main resources owing to the lack of basic knoweldge of their territory, are attracted by the idea of rapidly creating data banks through the use of remote sensing. While such a technique offers advantages over traditional means of data acquisition, it requires special systems and methods of analysis that are not particularly easy to assimilate. The building of data bases is taken here as the framework for analyzing some problems confronted by developing countries when trying to incorporate the techniques of teledetection. 相似文献