all-directional continuance and all-directional in
horizontal directional drilling horizontal directional drilling technology
adsorption and adsolubilization
Adsorption and adsorption
adsorption-frozen-adsorption system
Brunauer-Emmett-Teller adsorption theory (= BET adsorption theory)
3D and 4-directional braiding
3-directional seismic base excitation
8-directional chain code
active field directional ranging
adaptive directional algorithm
Adaptive Directional Filter
adaptive directional line differential protection
adaptive directional weighted median filtering
advance directional sign
air directional drilling