A covering (usually of cloth) that serves as a roof to shelter an area from the weather.
Canvas is an extremely heavy-duty plain-woven fabric used for making sails, tents, marquees, backpacks, and other functions where sturdiness is required.
Earthworks are engineering works created through the moving of massive quantities of soil or unformed rock. Engineers need to concern themselves with issues of geotechnical engineering (such as soil fluidity and friction) and with quantity estimation ...
An elevator or lift is a transport device used to move goods or people vertically. Because of wheelchair access laws, elevators are often a legal requirement in new buildings with multiple floors.
