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长期以来,各地生产的风琴,音板上的气口盖大都是用红松木制作,不但工艺上要求高,而且往往因气候影响发生变形。
For a long time, the organs and sound boards on the sound boards are mostly made of Korean pine wood, which not only requires high technology, but also often deforms due to the impact of the climate.