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