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单词	lignite
释义	lignite /ˈlɪɡnʌɪt / noun [mass noun] A soft brownish coal showing traces of plant structure, intermediate between bituminous coal and peat.Peats will in situ change successively to lignite, to bituminous coal, and eventually to anthracite.... Coal is usually classified into the sub-groups known as anthracite, bituminous, lignite, and peat. The Tertiary coal of northern Thailand is classified according to coal rank as lignite to bituminous coal. Derivatives lignitic /lɪɡˈnɪtɪk/ adjective ... The Oligo-Miocene succession consists of interbedded clays and sandstones with subordinate lignitic horizons and several thick conglomeratic units towards the base of the Oligocene. It is capped by the above mentioned sandstone unit and grades into lignitic clay below. The major limitation for using lignitic and sub bituminous Pakistani coals as fuels, is their high sulphur content. Origin Early 19th century: coined in French from Latin lignum 'wood' + -ite1.
随便看	thegn the Goat the Godhead the Good Book the Good Shepherd the gory details the Graces the Grail the Grampians the Grand Manner the grass is always greener on the other side (of the fence) the Great the great and the good the great Australian dream the Great Depression the Great Game the Great Mogul the (great) unwashed the green-eyed monster the Greensand the Grenadines the Grim Reaper the groves of Academe the Gulf the half of it

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