Coal mining productivity is calculated by dividing total coal production by the total direct labor hours worked by all mine employees.
Other Database Pages Exist for this Phrase:
Coal (Coal is formed from plant and animal matter that ...)
Mining (Mining refers to the science, technique, and ...)
Coal (Coal refers to a combustible black or brownish ...)
Related Articles | |
| Combustible | ■■■ |
Combustible means able to burn. - - . . . Read More | |
| Subbituminous coal | ■■■ |
Subbituminous coal - A coal whose properties range from those of lignite to those of bituminous coal . . . Read More | |
| Charcoal | ■■■ |
Charcoal pertains to a drawing pencil or crayon made from a black, porous carbonaceous material . Also, . . . Read More | |
| Cleaned coal | ■■■ |
Cleaned coal or prepared coal has been processed to reduce the amount of impurities present and improve . . . Read More | |
| Coal briquets | ■■■ |
Coal briquets - anthracite, bituminous, and lignite briquets comprise the secondary solid fuels manufactured . . . Read More | |
| Coal gasification | ■■■ |
Coal gasification -is described a the process of converting coal into gas. - - The basic process involves . . . Read More | |
| Coal liquefaction | ■■■ |
Coal liquefaction: refers to a chemical process that converts coal into clean-burning liquid hydrocarbons, . . . Read More | |
| Coal mine | ■■■ |
Coal mine: Coal mine refers to an area of land and all structures, facilities, machinery, tools, equipment, . . . Read More | |
| Coal preparation | ■■■ |
Coal preparation is the process of sizing and cleaning coal to meet market specifications by removing . . . Read More | |
| Coal rank | ■■■ |
Coal rank is described as theclassification of coals according to their degree of progressive alteration . . . Read More | |
