the acoustic wave velocity of rock
the raise ratio of acoustic velocity
alteration of dry and wet
Contrast analyses of dry and wet years (months) in NC and NWC
cycle of dry and wet conditions
Impact of dry and wet weather
the change of dry and wet stages
Average wave velocity ratio
compressional versus shear wave velocity ratio
cranny ratio of rock mass
determinator of ratio of specific heat of gas
elastic wave velocity ratio
Invariability of Ratio of Areas
P and S wave velocity ratio