soft coal
Bituminous coal, as distinguished from hard coal (anthracite).
(US) A classification of lumber, widely used in construction in much of the US, from any of several species of genus Pinus grown in the southeastern United States. / Pinus palustris, longleaf pine.
plural of rumormonger
A surname.
工場はすすや硫黄分の排出を減らすために、瀝青炭から天然ガスに切り替えた。
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