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椭圆形二胡琴杆由吕伟康、王瑞泉二位师傅先后相继研制,至今已经近二十年。二胡自改成椭,圆琴杆后,增强了抗弯强度,演奏舒适,博得二胡演奏家的一致好评。以往椭圆形琴杆用手工生产,劳动强度大,技术难度大,工效低。苏州民乐一厂强汝康同志研制成的半自动椭圆形二胡琴杆机,经过八个多月的试用,情况很好。它把平刨、横刨及斩脚稍、锉肩夹、推刨,划线、粗耪等七道工序合成一道,工序劳动生产率提高五倍,减轻了劳动强度,产品规格统一。
Oval erhu piano rod by Lv Weikang, Wang Ruiquan two masters have successively developed, has been nearly 20 years. Erhu changed from oval, piano harp, enhanced bending strength, playing comfort, won the erhu virtuoso praise. In the past, the oval piano rod was produced by hand, with great labor intensity, technical difficulty and low work efficiency. A semi-automatic oval-shaped erhu piano machine developed by Comrade Kang Rukang, a folk music factory in Suzhou, was in good condition after more than eight months of trial. It combines planing, planing and chopping feet slightly, filing shoulder clips, push planing, scribing, roughing and other seven processes together, the process of labor productivity increased fivefold, reducing labor intensity, unified product specifications.