Sentence examples for coal may be from inspiring English sources

Coal may be down in America.

It determines how much coal may be burned.

For investors fearing higher inflation, coal may be golden.

Last week, Goldman Sachs forecast that coal may be in terminal decline, with the fall in demand possibly being irreversible.

Coal may be classified in rock types (or lithotypes) based on the presence of petrological components known as macerals.

Isaac Bloom Minneapolis, June 29 , 2009• To the Editor: Gregg Easterbrook's plea for improving the way we burn coal may be falling on deaf ears.

Coals may be classified in several ways.

Coals may be classified on the basis of their macroscopic appearance (generally referred to as coal rock type, lithotype, or kohlentype).

The study revealed that all the coal samples may be suitable for liquefaction and gasification and Garin Maiganga and Tai coals may be used for smokeless fuel production.

Coal maceral compositions vary with the types of coal facies, and thus the methane adsorption capacity of coals may be closely related to coal facies.

The forms of selenium in coals may be determined as water-leachable, ion-exchangeable, organic matter-associated, carbonate-associated, silicate-associated, and sulfide-associated.