在无产阶级革命文艺蓬勃发展的大好形势鼓舞下,在我院领导的直接关怀和支持下,民族器乐系成立了“三结合”的科研乐改小组。经历约半年的时间,经过反复实践,试制出一种《双千斤改革二胡》(见图一)。现将情况简介如下: Encouraged by the booming proletarian revolutionary literature and art, with the direct care and support of our leaders, the National Instrumental Music Department set up a “triple combination” of research and reform groups. After about six months, after repeated practice, trial and production of a “double kilos reform Erhu” (see Figure I). The briefing is as follows: