瓶胆 píngdǎn thermos liner Definitions Defs Origin Strokes Stroke Words Sentences Sents 瓶胆 (瓶膽) píngdǎn thermos liner noun The vacuum bottle within the outer case of a thermos. Frequency Written text 0.073 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
瓶胆 (瓶膽) píngdǎn thermos liner noun The vacuum bottle within the outer case of a thermos. Frequency Written text 0.073 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
