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Ahmed mahmoud

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6 Presentations
Rejoint 12/31/2019

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Egyptian soils

246 vues

Thermal analysis of the African continent

Thermal analysis of the African continent

100 vues

New in the process of hatching

New in the process of hatching

96 vues

Microbial enzymes

Microbial enzymes

188 vues

Water erosion

247 vues

Food items that affect poultry (growth - egg -digestion)

Food items that affect poultry (growth - egg -digestion)

203 vues