Muhammad Hamad Qureshi

cummunication patent manufacturing of disprin aternative of disprin economic potential disprin process of cummunication conditions co process barriers of coommunication rules of precise writing precise writing types of expository writing with brief description expository writing graphical representation example volatile components mathematical form roults law types of fire extinguisher types of fire pictures fire extinguishers fire diffusion in solids mechanism of diffusion mass transfer presentation diffusion in gases diffusion in liquids diffusion