- coal: n 1 煤，煤塊，煤堆。2 〈pl 〉〈美國〉（一堆）燒紅的煤。3 〈常 pl 〉〈英國〉（幾塊）供燃燒的煤。4 ...
Study of absorptive characteristics of coal
In view of this situation and the characteristic of qualitative variable as well as quantitative variable of the geological factors affecting coal seam affusion, put forward the application of numerical theory on the basis of optimization study of orthogonal design to confirm the optimal combination of the technical parameters of coal seam affusion when geological factors is in precarious state and then proceed optimization study with instances
Power plants that burn coal add greatly to air pollution.
Coal is one viable alternative.
Skin - the - goat, assuming he was he, evidently with an axe to grind, was airing his grievances in a forcible - feeble philippic anent the natural resources of ireland, or something of that sort, which he described in his lengthy dissertation as the richest country bar none on the face of god s earth, far and away superior to england, with coal in large quantities, six million pounds worth of pork exported every year, ten millions between butter and eggs, and all the riches drained out of it by england levying taxes on the poor people that paid through the nose always, and gobbling up the best meat in the market, and a lot more surplus steam in the same vein