A shrinkage method combining with medium-length hole and shallow hole
hole by hole blasting technique
hole by hole detonating
hole by hole initiating
hole by hole initiation
mid-and-deep hole combining shallow hole balsting
Clogged flow passage design
collaterals clogged with phlegm and blood stasis
1 Taper Hole in Coupling
a circular hole with two cracks
a half plane with a hole
a hole in an implement or utensil for something to be inserted into