feed hole

bottom hole spacing

drill hole spacing

Hole Spacing

Hole spacing of maize

hole spacing pattern parameter

Large Hole Spacing

Wide hole spacing

feed forward and feed back AGC

A shrinkage method combining with medium-length hole and shallow hole

hole by hole blasting

hole by hole blasting technique

hole by hole detonating

hole by hole initiating

hole by hole initiation

Hole-by-hole

mid-and-deep hole combining shallow hole balsting

sight hole peep hole

Ratio of row spacing to plant spacing

0 feed structure