shaft reference line

aircraft boresight reference line

angular reference line

CCD reference line

character spacing reference line

character spacing reference-line

Double line-line voltage control

electronic line-shaft

electronical line shaft

fuselage reference line

horizontal reference line

line adjustment

Line shaft

Line shaft Diverter

line shaft hanger

line-line extreme distance

line-line topological relation in traffic network

line-shaft driven vehicle

lower pass-line adjustment unit