mu-tuning {= μ-tuning}

flat-tuning (=broad tuning)

an eye for an eye

an eye for an eye and a tooth for a tooth

eye and eye turnbuckle

eye relief (=eye-point distance)

eye relief，eye distance

eye to eye contact

eyetoeye contact

A1 and Mg alloy tuning fork

Active speed-tuning control

adaptive control and auto tuning

adaptive tuning

adjustable motor tuning

advance tuning

aerial tuning

aerial tuning capacitor

aerial tuning coil

aerial tuning condenser