adj.
of a musical instrument 乐器倍低音的 with a range of notes one octave below that of a bass instrument
a contrabass clarinet
倍低音单簧管
noun
adj
数据来源:WordNet
Bombardon : a brass instrument resembling a tuba but with a lower pitch ; a bass or contrabass tuba .
低音大号:一种与大号相似却音调较低的铜管乐器;低音或最低音大号。
Contrabass or double-bass clarinet .
最低音或者倍低音黑管。