effective helix angle

Equal Helix Angle

equivalent helix angle

helix angle at reference cylinder

Helix angle deviations

helix angle of oblique tooth-slotting cutterβT

helix angle of thread

helix angle tester

helix angle tool

Helix angle θ

helix angleβ

taper cutting tools with equal helix angle

Variable helix angle

Variable helix angle bevel gear

Helix-helix translation

action-angle-angle transformation

phase angle {angle of phase difference}

basic helix-loop-helix bHLH family

helix-loop-helix (HLH) protein