檢索結果 - ((institute OR institute) OR instituteeees) (((organisation OR organizations) OR organization))
在您的搜尋 主題建議
在您的搜尋 主題建議
- Research 18
- Data processing 16
- Directories 16
- Associations, institutions, etc 15
- Management 15
- Mathematical models 15
- Environmental aspects 13
- Agriculture 12
- Congresses 12
- Land use 12
- Study and teaching 12
- Mathematics 11
- Design and construction 10
- Economic aspects 10
- Forests and forestry 10
- Soils 10
- Information services 8
- Pollution 8
- Metallurgy 7
- Mining engineering 7
- Planning 7
- Testing 7
- Information storage and retrieval systems 6
- Maintenance and repair 6
- Purification 6
- Analysis 5
- Classification 5
- Construction industry 5
- Developing countries 5
- Educational planning 5
-
421
-
422
International Symposium on Water Erosion, Sedimentation and Resource Conservation, October 9-13, 1990, Dehradun, India.
出版 1990Conference Proceeding 圖書 -
423
-
424
-
425
-
426
-
427
-
428
-
429
-
430
-
431
-
432
-
433
-
434
-
435
-
436
-
437
-
438
-
439
-
440