Sentence examples for coal exploitation from inspiring English sources

Barack Obama flagged new restrictions on coal exploitation in his State of the Union address this week, saying: "I'm going to push to change the way we manage our oil and coal resources so that they better reflect the costs they impose on taxpayers and our planet".

During coal exploitation, gas is efficiently extracted at the same time.

Methane hazard, which may occur during planned coal exploitation, is presented in this paper.

Environment cumulative effects characteristics, sources, approaches and types aroused by coal exploitation are discussed.

Coal exploitation can provide the required conditions of 'mining-enhanced permeability' and 'space guarantee' for gas drainage.

Coal exploitation can provide the conditions for 'mining-enhanced permeability' and 'space guarantee' that are required for gas drainage.

According to the Technical Criterion of Protective Coal Seam Exploitation (AQ 1050 2008) and the geotechnical conditions, the depressurized zones were calculated and the depressurized angles (approximately equivalent to breakage angles) were derived: 76° and 84° inside the head-entry and tail-entry, respectively.

Exploitation technology of pressure relief coalbed methane in vertical surface wells is a new method for exploration of gas and coalbed methane exploitation in mining areas with high concentrations of gas, where tectonic coal developed.

The miserable plight of breaker boys inspired Gilded Age journalists to loud denunciations of coal-mine exploitation and led to passage of stronger child labor laws.

Qinshui Basin is located in the southeast of Shanxi Province and it is the most successful area for coalbed methane exploitation in China (Fig. 1).

This liquefier can be used in various applications such as small natural gas or coalbed methane exploitations, distributed peak-shaving, and boil-off gas reliquefaction.