ratio of diameter to depth
ratio of diameter of labyrinth passage to diameter of particle
the ratio of depth to width
high length-to-diameter ratio
high ratio of catalyst to oil
high ratio of encased steel
High Ratio of Height to Thickness
high ratio of lift over drag
High Ratio of Performance to Cost Price
high ratio of powder to gas
high ratio of pulverized coal injection
rejection ratio of high power
the maximum high-depth ratio
The ratio of high and width of primary air burne
big length-to-diameter ratio