swell box

swell box

美 　英

• na.【乐】(风琴的)音响调节箱[器]
• 网络风琴调节箱；增音箱；风琴的音响调节箱

英汉解释

na.	1. 【乐】(风琴的)音响调节箱[器]

英英解释

n.	1. a device on an organ, usually an enclosed box with pipes, that permits crescendo and decrescendo, a characteristic otherwise lacking on this instrument