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| First Page | Document Content | |
|---|---|---|
 Date: 1999-07-20 10:18:02Water supply Mechanical engineering Technology Tropical agriculture Fluid dynamics Hand pump Treadle pump Check valve Irrigation Pumps Fluid mechanics Appropriate technology |
| First Page | Document Content | |
|---|---|---|
Date: 1999-07-20 10:18:02Water supply Mechanical engineering Technology Tropical agriculture Fluid dynamics Hand pump Treadle pump Check valve Irrigation Pumps Fluid mechanics Appropriate technology |
