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L

L-plate

L-shaped beams that can be bolted to the outside of the C-channel to increase the rails’ RBM.


labor guide

A guide that provides information to make estimates for repairs.


ladder logic

The designed-in logic sequence of a circuit control devices that determines what steps activates a specific output.


ladder-type frame

A frame consisting of two rails joined together by a series of cross members.


land

The largest diameter in a spool; used to block flow paths.


landing gear

Retractable legs attached to the trailer, which support a semi-trailer when it is not resting on a fifth wheel.


latching solenoid

Solenoids that need only a short burst of electricity to move to an open or closed position and they remain in that state until they are energized again.


latent heat

The quantity of heat required to produce a change of state from a solid to a liquid or a liquid to a gas.


latent heat of fusion

The process of removing heat energy to matter to effect a change of state.


latent heat of vaporization

The process of adding heat energy to matter to produce a change of state.



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