velocity ratio of knife and machine

Gamma knife radiosurgery (γ-knife)

insulated-tip diathermic knife IT knife

average velocity， mean velocity

group velocity and phase velocity

ratio of pulp velocity and sire velocity

velocity derived from velocity spectrum

60 Co gamma knife

a fruit knife

abscess knife

accelerator gamma knife

air knife

air knife coating

air knife nozzle gap

air-knife

amputating knife

amputation knife

Analysis of the radio knife

angular knife