【化】 bisfuranyl-18-crown-6
twin; two
【计】 binary-coded decimal; binary-coded decimal character code
binary-to-decimal conversion; binary-to-hexadecimal conversion
【医】 bi-; bis-; di-; duo-
【化】 furan; furfuran; tetrole
【医】 furan; furfuran; oxole
combine; equally
【化】 crown ether