Sentence examples for underground method from inspiring English sources

Indeed, in recent years the ad industry has adopted an underground method of selling that depends on our complicit embrace of brands.

The most common underground method of ore extraction is cut-and-fill stoping, in which tunnels are dug to moderate depths, branching away from the mine portals.

Longwall mining is one of the most acclaimed and widely used in underground method for coal extraction.

As with any underground method, an adequate mine ventilation system is essential to control operational costs while achieving the development and production schedule.

Mechanized room-and-pillar system of coal pillar mining using side dump loading machine or load haul dumper machine, or by continuous miner, is the presently most dominant underground method of extraction in India.

Mining in Quebec follows underground methods.

Recognising that there was no sign of attacks against persons in the whole affair, she nevertheless declared: "They have adopted underground methods.

More grisly is the artist's four-painting "Interrogation" series of the 1980's, presumably commenting on American military actions in Central America and representing a shift to more underground methods of combat.

He was imprisoned (1930 32) for his trade-union and party activities, and in 1934 he fled into exile, eventually making his way from Czechoslovakia to the Soviet Union, where he received indoctrination in underground methods.

Because he could not disturb street traffic with a trench, he was forced to drive the tunnel by underground methods and invented a cylindrical tunneling shield, powered by hydraulic rams; this shield actually antedated that built by James Henry Greathead for the Tower Subway in London.

Zinc ores are recovered by many mining techniques, ranging from open-pit mining (mainly in the case of oxidized ore bodies, which are located closer to the Earth's surface) to the normal underground methods (used for the more deeply located sulfide ores).