hand drill उदाहरण वाक्य
उदाहरण वाक्य
- It could drill a hole in the slate in under two minutes, much less than the day required using hand drills.
- This led to the hand drill, a smooth stick, that was sometimes attached to flint point, and was rubbed between the palms.
- The U-shaped part is a kind of crankshaft . It gives the brace much greater torque than other kinds of hand drills.
- The advantage of the hand drill technique is that it requires no rope, which can be time consuming to produce and wears down rapidly.
- The quarry began operation in the 19th century and much of the labor was that of Irish immigrants using hand drills, hammers and chisels.
- The rough sections of the tunnel were created the old-fashioned way _ by sandhogs, as the workers called themselves, wielding dynamite and hand drills.
- Gillette covered rock work and quarrying methods from ancient hand drills through steam's dominance in mining to just before the advent of gas-powered drills ."
- This can be demonstrated by putting one end of a pair of wires in a hand drill and turning while maintaining moderate tension on the line.
- I suspect you have a hand drill; the trick is not in the drilling, but more in the securing the scissors well enough to drill without incident.
- Rusting tools remain embedded in the rock where, at the deepest point, POWs cut 80 meters ( 260 feet ) straight down using hand drills and sledgehammers.