axis direction and radius direction
axis direction sensitive
Major axis direction of isoseismal curve
principal stress axis direction
direction of camera axis
direction of optical axis
direction of principal axis
Same-Direction and Double-Axis Screw
d-axis and q-axis inductance
exchange between X-axis and Y-axis
hypothalamic-pituitary-adrenal axis HPA-axis
Long axis-short axis method
major axis and minor axis of an ellipse
mapping from virtual axis space to real axis space
Non-perpendicularity between horizontal axis and vertical axis
q-axis and d-axis inductances