A fretted stringed instrument having a narrow neck and a hollow circular body with a stretcheddiaphragm of vellum upon which the bridge rests.
班卓琴一种有格子纹的细颈弦乐器，琴身中空，呈圆形，由可延展的。
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When attached to the rat's diaphragm, the animal's breathing stretched the nanowire, and it generated a tiny amount of electricity — about four pico-amps of current at two millivolts.