The material dug out in making a channel or cavity.
Archaeological research that unearths buildings, tombs and objects of historical value.
The act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass.
An uncovered cutting in the earth, in distinction from a covered cutting or tunnel.
A site where an archaeological exploration is being carried out.
Something uncovered by archaeological excavation.
A cavity formed by cutting, digging, or scooping.
A system of ducts for cables, heating or ventilation.
The movement of containers or packages between a terminal and a transporter's inland facilities, or the scheduled transportation service between locations.
All the electrical and communications cables bundled together and distributed through a building.
Plastic conduit or duct used to conceal and protect electrical wiring.
A two-way radio technique that uses a control channel to automatically assign frequency channels to groups of user radios.