油层 yóucéng oil layer Definitions Defs Origin Strokes Stroke Words Sentences Sents 油层 油層 yóucéng oil layer a layer of porous rock deep underground that contains oil; an oil-bearing formation Frequency Written text 0.576 per million Sources Frequency data BCC Corpus (BLCU)
油层 油層 yóucéng oil layer a layer of porous rock deep underground that contains oil; an oil-bearing formation Frequency Written text 0.576 per million Sources Frequency data BCC Corpus (BLCU)
