| 单词 | rock drill |
| 例句 | Kang said she sometimes worked 12 hours a day and used a rock drill that was as heavy as she was. North Korea waging propaganda-heavy, 80-day labor campaign 2020-11-13T05:00:00Z For the past 18 months NASA's Curiosity rover's rock drill hasn't been working properly - unable to extend stabilizing posts around the drill itself. Astrobiology Roundup: Stars in a Multiverse, Drills on Mars and More 2018-06-03T04:00:00Z Crews use a rock drill to bore a 1 1/2-inch diameter hole deep in the boulder and then fill the void with explosives. Crews use explosives to blast boulders plugging creeks in Montecito 2018-01-17T05:00:00Z The expedition will use new types of rock drill developed in the UK and Germany to retrieve cores from up to 80m below the seabed. Expedition seeks Atlantis microbes - BBC News 2015-10-22T04:00:00Z The rock drill was spun at a scientific waypoint known as "The Kimberley". Mars rover starts drilling again 2014-04-30T06:14:51Z Our correspondent says that most of the people taking part in the strike work deep underground as rock drill operators. SA platinum workers on strike 2014-01-23T11:45:19Z Our correspondent says that most of those workers taking part in the strike work deep underground as rock drill operators. SA braces for platinum sector strike 2014-01-23T00:14:18Z The miners, who are mostly rock drill operators, cheered when they were told late on Tuesday that they would get pay rises of between 11% and 22%. Lonmin shares rise after pay deal 2012-09-19T09:13:30Z The police action came after tensions exploded between 3,000 rock drill operators, who were supporters of a new more militant union, and members of the National Union of Mineworkers. After South Africa's Mine Massacre, Will the ANC's Grip on Power Unravel? 2012-08-24T08:05:32Z After 34 workers were shot dead by police, the company said illegal striking rock drill operators must return to work the following day. Lonmin welcomes inquiry into its role in mine shootings 2012-08-23T16:11:50Z "Working underground is like making a fire in a room and closing all the windows and doors," said Isaac, a striking rock drill operator. Lonmin fears sackings could re-ignite South Africa violence 2012-08-21T12:06:28Z The Curiosity's rock drill will contaminate samples with Teflon, posing a problem for researchers. NASA Rover Will Contaminate Its Samples of Mars 2012-06-11T22:04:10Z Jeff Mphahlele, general secretary for the Association of Mineworkers and Construction Union, which represents some of the rock drill operators, couldn’t immediately comment when reached by mobile phone. Impala Fires 17,200 Workers at World’s Biggest Platinum Mine 2012-02-02T17:44:02Z As the rock drill made a revolution in blasting and tunnelling, so the Blake crusher revolutionised the art of road making. Inventions in the Century 2011-07-20T02:00:14.643Z A rock drill of entirely different design, the Brandt, has been successfully used in Europe for driving railway tunnels. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" The river furnishes good water-power, and the town has various manufactures, including stoves and ranges, boilers, bar iron, rivets, steel castings, rock drills, air compressors, silk hose and underwear, organzine or thrown silk, and overalls. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" Two sets of air compressors are fitted on the barge—one set for supplying air to the bell, the other set for working a pneumatic rock drill inside the bell. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" For rock drills, and revolving saws for stone cutting, either diamond, bort or carbonado is employed, set in steel tubes, disks or bands. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" The use of the rock drill is forcing itself more and more on the college teacher accustomed to use only hammer and saw. College Teaching Studies in Methods of Teaching in the College Other men came out of the ship, carrying rock drills, a roll of cable and a powerful little windlass. Loot of the Void Luke was working high up on the slope, with rock drill and pick. Vulcan's Workshop "Would you care to hold a rock drill, or swing a sledge instead?" Thurston of Orchard Valley To break away the rock, the miner makes a hole with a rock drill worked by electricity or compressed air, puts powder or dynamite into the hole and explodes it. Diggers in the Earth Automobile and other vehicle springs; tools, such as hot and cold chisels, rock drills and shear blades. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Then we have the compressed air transmission of power, which is very largely used for underground engines, and for the working of rock drills in mines and tunnels. Scientific American Supplement, No. 312, December 24, 1881 He swung his pick and wielded his rock drill with joyful abandon, so that three men were kept busy loading the ore he removed. Vulcan's Workshop Several devices have been applied to rock drills for reaming the hole by machinery while drilling; that is, efforts have been made to combine the drill and the reamer. Scientific American Supplement, No. 832, December 12, 1891 I inspected the works and the rock drills. Gold, Sport, and Coffee Planting in Mysore Light purple530°F. Taps, dies, rock drills, knives, punches, gages, etc. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It also serves many other purposes in the work, illumination, supplying power for hoisting and excavating machinery, driving rock drills, and operating ventilating fans, etc. Marvels of Modern Science After looking at the rock drills I inspected the gold extraction works. Gold, Sport, and Coffee Planting in Mysore |
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