F hole area

middle-hole-area ratio

nozzle hole area

open hole area

tap hole area dedusting

hole-burning area

hole hole interaction

area, area side trapezoid

area-area

area-area contact

wetted surface area [= area of wetted surface]

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

electron-hole liquid drop (=electron-hole droplet)

hole by hole blasting

hole by hole blasting technique

hole by hole detonating

hole by hole initiating

hole by hole initiation

Hole-by-hole