fold-axis

fold-axis slant

N-fold axis

six fold axis

slant of the fold-axis

three fold axis

n-fold screw axis

n-fold symmetry axis

two-fold [symmetry] axis

Axis axis

distance-true fold (concentric fold)

FOLD ON FOLD

head fold-Cephalic fold

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