the ratio of air quantity and water volume
decreasing ratio of water content
determinator of ratio of specific heat of gas
Invariability of Ratio of Areas
lower ratio of water andglue
mass ratio of water to cement
ratio of volume dilution
ratio of water and carbon
Ratio of water and fertilizer
ratio of water and plaster
Ratio of water content of rock fragment to fine so
Ratio of water content of rock fragment to fine soil
ratio of water power utilization
ratio of water reducing
ratio of water to binder