How To Use Rock drill In A Sentence
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The impact hammer of a hydraulic rock drill is a mechanism with high pressure and high frequency. Its seal performances affect the efficient, energy consumption and steadiness of the rock drill.
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The noise in the tunnel was deafening, the dust-filled air practically unbreathable, and in some places the rock drilled out ahead had to be scooped up by hand, passed under the stomach, and kicked back with the feet to men with buckets who, in turn, had to squirm back to the face of the cliff to dump their loads.
Colossus
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The miners used rock drills and compressed air to drive through hard rock.
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Within a shell-like body no bigger than a motorcycle wheel, Beagle 2 carries an incredible array of instruments, including an on-board laboratory for analysing samples, a rock drill and a burrowing mole.
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Since the process of colliding mechanism of electric rock drill is complex, there isn′t a set of calculating method practically still now.
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It is equipped with a rock drill and grinder, and a ‘mole’ that can burrow under the ground, collecting soil from a depth of 1.5 metres.
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Highlights of the exhibition will include: Umberto Boccioni's sculpture Unique Forms of Continuity in Space 1913; Carlo Carrà'sFuneral of the Anarchist, Galli 1911; and responses to the challenge represented by Futurism in works such as Delaunay's Eiffel Tower 1911; Jacob Epstein's Torso in Metal from the Rock Drill 1913-14 and Picasso's Pipe, Glass, Bottle of Vieux Marc 1914 onto which he pasted the Futurist periodical, Lacerba.
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