straddle cutters
1tunnels 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 …
2Speeds and feeds — A line drawing showing some basic concepts of speeds and feeds in the context of lathe work. The angular velocity of the workpiece (rev/min) is called the spindle speed by machinists. Its tangential linear equivalent at the tool cutter interface… …
3Opposition to the War in Afghanistan (2001–present) — Foreign troops forcibly breaking into an Afghan home to conduct a house search, with a woman and child in the background. Opposition to the decade long Afghanistan war stems from numerous factors these include the view that the U.S. invasion of… …
