0 The ways to protect the living organisms from the extinction October 3, 2014 by Heba Soffar · Published October 3, 2014 · Last modified September 14, 2016
0 The factors affecting the friction between the solid objects and the water November 29, 2014 by Heba Soffar · Published November 29, 2014 · Last modified September 14, 2016
0 3D Printing ( Additive & Subtractive Manufacturing ) uses , types , cons & pros April 25, 2017 by Heba Soffar · Published April 25, 2017 · Last modified June 10, 2018
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