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- (acoustics) Sound wave.
- The waves that contain sound energy and by the motion of which sound energy is transmitted in air, in water, or in the ground. The wave may be described in terms of change of pressure, of particle displacement, or of density. AGI
- Used increasingly to study the physical properties of rocks and composition of gases. Investigations may be made both in situ and in the laboratory. Nelson
Source: Dictionary of Mining, Mineral, and Related Terms
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