safety phase lines

exterior lines (див. interior lines)

interior lines (див. exterior lines)

single-phase and triple-phase convertor switcher

apron safety lines

safety and arming device / safety-and-arming device

air lines of communication (ALOC)

disruption of lines of communication

electric power lines

friendly lines

ground lines of communication (GLOC)

gun lines

in the lines

interior lines of communication

interval of grid lines

lines of communication (LOC)

lines of withdrawal

passage of forward lines

passage of rearward lines

reconnaissance behind enemy lines

roll up enemy lines

stadia lines (hairs, mark)

go behind enemy lines

dividing lines

disrupt supply lines

forward friendly lines passage

forward passage of lines (FPOL)

intertheater lines of communications

most likely lines of deployment

alternative lines of communication

heavy-tonnage lines of communications

Helmholtz theorem on conservation of vortex lines

service road boundary lines