Hi vis overalls - High visibility overalls are used by workers on the roads, rails, and near cranes etc. Padded overalls - With padding material covering the inside for use in cold weather This definition was written in the context of Personal Protective Equipment (PPE)
Princeton's WordNet(0.00 / 0 votes)Rate this definition: conservation of mass, conservation of matter, law of conservation of mass, law of conservation of matter(noun) a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system. Chaldean Numerology.
Conservation of Mass (3.1.5) The volume occupied by the matter may be changing and the density of the matter within. the system may be changing, but the mass remains constant. Considering a differential mass element at position X in the reference configuration and. at x in the current configuration, Eqn. 3.1.5 can be rewritten as. dm(X) =dm(x,t) (3.1.6) The conservation of mass equation can be expressed in terms of densities.