瓶胆 píngdǎn thermos liner Definitions Defs Origin Strokes Stroke Words Sentences Sents 瓶胆 瓶膽 píngdǎn thermos liner the vacuum bottle or inner container within the outer case of a thermos, traditionally made of double-walled glass with a silvered surface to maintain temperature Frequency Written text 0.073 per million Cross-References Classifier 只 zhī Sources Frequency data BCC Corpus (BLCU)
瓶胆 瓶膽 píngdǎn thermos liner the vacuum bottle or inner container within the outer case of a thermos, traditionally made of double-walled glass with a silvered surface to maintain temperature Frequency Written text 0.073 per million Cross-References Classifier 只 zhī Sources Frequency data BCC Corpus (BLCU)
