total pressure - triaxial state of stress
- tracer roller
- tracer technique
- tracer unit
- tracery
- trachyte
- tracing
- tracing cloth
- tracing feed
- tracing paper
- tracing table
- tracing wheel
- track
- track adhesion
- track adz
- track adze
- track capacity
- track centers
- track chain
- track conductor
- track crossing
- track curvature
- track deflection
- track depression
- track dressing
- track drill jumbo
- track equipment
- track gauge
- track gauge with wood rod
- track gradient
- track inspector
- track jack
- track laying
- track laying system
- track lifting and slewing machine
- track lining
- track maintainer
- track modulus
- track plotter
- track profile
- track rail