551.22
620.3 624.176 ≈ 21E 24B
21E
24B
See also:
↑ 620.3 mechanic vibration → 551.22 624.176 ↑ 624.176 seismic engineering → 363.3 551.22 620.3 693.85 ↑ 21E geological exploration of the subsurface. Earthquakes ≈ 551.22 ↑ 24B geophysics. Seismology ≈ 551.22
620.3
551.22 624.176
624.176
363.3 551.22 620.3 693.85
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