tran - turn
- trimming shears
- trimwork
- triode
- triode thyristor
- triordinate system
- trip
- trip bar
- trip block
- trip circuit
- trip coil
- trip dog
- trip dog-controlled machine
- trip drum
- trip feed handle
- trip gear
- trip lever
- trip mechanism
- trip of container
- trip pawl
- trip pin
- trip point
- trip rod
- TRIP steel
- trip trigger
- trip wire
- trip-dog control
- trip-free mechanical switching device
- trip-out
- trip-point
- tripet turret
- tripet turret head
- triple cam switch
- triple spindle head
- triple thread
- triple transit echo
- triple-acting press
- triple-action die
- triple-action press
- triple-fluted cutter
- triple-helical gear
