SUB

I сокр. от substitution

замена; замещение; подстановка

II сокр. от subtraction

вычитание

III

нефт. переводник

- barrel sub

- bent sub

- bottom-bole orientation sub

- bumper sub

- damping sub

- double-box sub

- double-pin sub

- drill bit sub

- drill collar lifting sub

- equalizing sub

- fishing bumper sub

- hydraulic power sub

- kelly saver sub

- kick sub

- landing sub

- lifting sub

- nonmagnetic sub

- orienting sub

- pin-to-box sub

- pin-to-pin sub

- reducing taper sub

- releasing sub

- reverse circulation sub

- shear pin sub

- shock sub

- stab sub

- stabilizing sub

- step sub

- swivel sub

- wear sub

субстантивированное прилагательное или причастие