笛子的改进笛子在吹奏时，要将笛膜贴在外面，一不小心笛膜就破了，我设想在贴笛膜的旁边两圈挖两条沟做成两道轨道，在轨道上装上一小块硬保护膜，吹时按开关推开，不吹时，推到笛膜上方卡死。吹笛子时，就不用为找笛膜、贴笛膜操心了。（卢勇良）笛子的改进@卢勇良... Flute improvement flute in the flute, the flute film attached to the outside, accidentally flute film is broken, I imagine in the paste film next to two laps dig two ditches to make two tracks on the track fitted with a Small pieces of hard protective film, press the switch to open when blowing, do not blow, pushed to the top of card film stuck. When playing the flute, it is not necessary to find the film of the flute or the film of the flute. (Lu Yongliang) flute improvement @ Lu Yongliang ...