concrete-lined tunnel
41Rome — /rohm/, n. 1. Harold (Jacob), born 1908, U.S. lyricist and composer. 2. Italian, Roma. a city in and the capital of Italy, in the central part, on the Tiber: ancient capital of the Roman Empire; site of Vatican City, seat of authority of the… …
42steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
43Ole Singstad — Born Ole Knutsen Singstad June 29, 1882(1882 06 29) Agdenes, Lensvik, Norway Died New York, NY …
44environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
45LACMTA Expo Line — The Metro Expo Line of the Los Angeles County Metro Rail is a light rail line currently under construction in Los Angeles County, California, USA, which will run from Downtown Los Angeles to Culver City and eventually to Santa Monica. Its route… …
46Maraetai Power Station — Maraetai Power Station …
47Berlin Wall — For the chess opening variation, sometimes known as Berlin Wall, see Berlin Defence. View from the West Berlin side of graffiti art on the wall in 1986. The wall s infa …
48technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
49Nottingham Transport Heritage Centre — Coordinates: 52°53′5.00″N 1°8′55.00″W / 52.88472°N 1.14861°W / 52.88472; 1.14861 …
50New Austrian Tunnelling method — NATM redirects here. For other uses, see NATM (disambiguation). The New Austrian Tunnelling method (NATM) was developed between 1957 and 1965 in Austria. It was given its name in Salzburg in 1962 to distinguish it from old Austrian tunnelling… …
