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The mountains along the lake are rich in phosphorite, and in the 1980s extensive exploration work was done for open-pit mining.
en.wikipedia.org The open-pit project will be mined using conventional truck and shovel methods, along with some bulk dozer push methods.
www.mining-technology.com It is an open-pit, run-of-mine, heap leach gold mine with conventional heap leaching technology and carbon absorption for ore treatment.
en.wikipedia.org The mine has an annual production capacity of 29.5 million tonnes of iron ore, sourced from open-pit operations.
en.wikipedia.org The mine proved to be profitable, and open-pit mining of low-grade copper deposits came to dominate the industry by mid-century.
en.wikipedia.org 互联网提供的例句（未经PONS编辑处理）
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www.scania.ch From heavy tippers for the tough conditions of underground mining and open-pit mining, to heavy tipper tractors with high power V8 engines for road transport from crusher to harbour.
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Von schweren Kippern für harte Einsatzbedingungen in Bergwerken und im Tagebau bis zu schweren Sattelzugmaschinen mit Hochleistungs-V8-Motoren für den Strassentransport vom Gesteinsbrecher zum Hafen.
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www.syperion.de For an optimised disposition of heavy cleaning machinery in open-pit mining Syperion has developed a simple, yet effective system that measures the height of muck build-up at critical positions, such as conveyor belt head stations, by using a radar sensor.
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Für eine optimierte Disposition von Reinigungsgeräten im Tagebau haben wir ein einfaches und kosteneffizientes Messsystem entwickelt, das mittels eines Radarsensors an entlegenen kritischen Stellen, z.B. an Abstreifern von Kippenbändern, die Anhäufung von Material misst.
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