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pitch coal 沥青煤,烟煤 以上来源于:《21世纪大英汉词典》 pitch coaln.① 瀝青煤(煙煤)pitch coal不可数名词沥青煤pitch coal沥青煤;沥青炭pitch coal沥青煤pitch coaln.(名詞 noun)瀝青煤document.write('function myFunction(n){var c=document.getElementById("maintb").children;for(i=0;i');英華☞pechkohlepitch coa |