Directional distance function approach

directional function

distance function

Euclidean Distance Function

function distance

Output Distance Function

horizontal directional drilling horizontal directional drilling technology

Analgesia function and anti-inflammation function

liver function and kidney function

Liver function renal function

step function and hurdle function

3-D directional well

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