单词Pianola
n.: 自动钢琴网络: 自动弹放钢琴;不佣人的劳力钢琴;自动型钢琴
皮阿诺拉自动钢琴:
a piano that plays automatically by means of a piano roll
自动钢琴
复数:pianolas
The holes passed over sprockets that caused hammers inside the pianola to strike the piano wires.
穿过链轮的孔引起钢琴内部的琴槌敲击琴弦。