universally jointed shaft
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jointed shaft — See universally jointed shaft … Dictionary of automotive terms
shaft — A long smooth surfaced bar of metal with a circular (round) cross section. See armature shaft arm shaft auxilliar drive shaft axle shaft balance shaft bevel drive shaft cardan shaft clutch shaft composite propeller shaft … Dictionary of automotive terms
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
Aegean civilizations — The Bronze Age civilizations that arose and flourished с 3000–1000 BC in the region bordering the Aegean Sea. They included Crete, the Cyclades, the Greek mainland south from Thessaly, including the Peloponnese, and Macedonia, Thrace, and western … Universalium