| 单词 | coal |
| 释义 | coal (once / 159 pages) 1nv 2nv Coal is a mineral, a black rock that can be extracted from the earth and burned for fuel. Most of the electricity that's produced in the world is powered by the burning of coal. Coal may seem like an old-fashioned fuel, making you think of steam locomotives that ran on coal, or coal fires heating homes in the nineteenth century. Some people still burn coal in stoves today, although most coal is burned on a much larger scale, generating electricity for entire towns and cities. You can also use the noun coal to mean a glowing ember in your fireplace or backyard grill. In Old English, it was col, from a Germanic root. WORD FAMILYcoal: coaled, coaling, coals USAGE EXAMPLESGlobal commodities producers are hoping that China will order big lumps of iron, coal and copper in the new year to send prices higher. Wall Street Journal(Jan 02, 2017) Carbon capture is proving itself, said David Mohler, the deputy assistant secretary for clean coal and carbon management at the federal Energy Department. New York Times(Jan 02, 2017) It was a rare bit of good news for Wyoming’s mining industry, hit hard by a downturn in coal and a recent BLM coal-leasing moratorium. Washington Times(Jan 02, 2017) 1 1n fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period Hypo|Hyper anthracite, anthracite coal, hard coal a hard natural coal that burns slowly and gives intense heat bituminous coal, soft coalrich in tarry hydrocarbons; burns readily with a smoky yellow flame brown coal, lignite, wood coalintermediate between peat and bituminous coal steam coalcoal suitable for use under steam boilers cannel coala bituminous coal that burns with a luminous flame sea coalpulverized bituminous coal; used as a foundry facing jeta hard black form of lignite that takes a brilliant polish and is used in jewelry or ornamentation fossil fuel fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content vegetable mattermatter produced by plants or growing in the manner of a plant 2v supply with coal Hyper furnish, provide, render, supply give something useful or necessary to 3v take in coal 2The big ship coaled Hyper gather in, take in fold up 1n a hot fragment of wood or coal that is left from a fire and is glowing or smoldering Syn|Hyper ember fragment a piece broken off or cut off of something else 2v burn to charcoal Syn|Hyper char burn, combust cause to burn or combust |
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