mine concession

基本解釋

In or-der to enhance the investment recovery rate and take full advantage of resources, the mine concession will match the two pairs of salt wells to extract brine.
爲(wèi)了提高投資廻收率，充分利用資源，鑛區(qū)將這兩對(duì)鹽井配對(duì)採(cǎi)鹵。
When fracturing a pair of salt wells in No. 3mining area in the mine concession of Hubei Doule-Ring Co. , Ltd, accidental communication with a pair of old cavities in No. 2mining area occurred.
湖北雙環(huán)公司鑛區(qū)在對(duì)三號(hào)採(cǎi)區(qū)的一對(duì)鹽井實(shí)施壓裂時(shí)，意外地與二號(hào)採(cǎi)區(qū)的一對(duì)老井溶腔連通。

In the past few years, Baomahun town has mushroomed as people rush to mine the land before it is taken over by the British mining company, Cluff Gold, whose 137 kilometer concession includes the artisanal mining pits.