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| influence on a body or system that can produce effects such as change in movement or shape |
| says universe's massive particles attract other such particles with force proportional to their mass |
| cementation (sē'měn-tā'shən) Pronunciation Key
A metallurgical coating process in which a metal or alloy such as iron or steel is immersed in a powder of another metal, such as zinc, chromium, or aluminum, and heated to a temperature below the melting point of either. Cementation is often employed to increase resistance to oxidation. |