煤层 méicéng coal seam Definitions Defs Origin Strokes Stroke Words Sentences Sents 煤层 (煤層) méicéng coal seam noun a layer or stratum of coal found between other layers of rock Frequency Written text 2.03 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
煤层 (煤層) méicéng coal seam noun a layer or stratum of coal found between other layers of rock Frequency Written text 2.03 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
