Examlex
Perform the indicated operations.
Density
The mass per unit volume of a substance, used as a measure of its compactness.
Seismic Tomography
A technique using the arrival times of seismic waves to identify materials with different physical properties within the Earth.
Seismic Waves
Vibrations that travel through the Earth’s interior or along its surface, generated by earthquakes or other earth movements.
Medical Device
An instrument, apparatus, implant, or similar article used for diagnosing, preventing, or treating disease or other conditions.
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