凹面镜 āomiànjìng concave mirror Definitions Defs Origin Strokes Stroke Words Sentences Sents 凹面镜 (凹面鏡) āomiànjìng concave mirror noun Frequency Written text 0.021 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
凹面镜 (凹面鏡) āomiànjìng concave mirror noun Frequency Written text 0.021 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
