Directional Distance Function

directional function

distance function

Euclidean Distance Function

function distance

Output Distance Function

Maximum-Likelihood Function Approach

modified barrier function approach

weight function approach

approach-approach

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