часть; доля
- active portion of a broach
- annular relieved portion
- bottom-most portion
- cammed portion of cycle
- ceiling portion
- cut portion
- end portion
- exposed portions
- face plate portion
- flange portion
- grip portion
- holding portion
- idle portion
- inserting portion
- journal portion
- key portion
- land portion
- lower end portion
- mount portion
- neck portion
- pan portion
- parallel portion
- pilot portion
- plain spigot portion
- profiled portion
- pull portion
- raised portion
- reduced neck portion
- shank portion
- supporting portion
- tapered shank portion
- threaded screw portion
- V-shaped portion
- worm gear portion