99. 附錄四、塑膠管模擬竹管木琴徑級與筒高之音頻對照表. Type B pipe diameter-class (cm). 10.8. 9.4 8.4. 7.2. 5.5. 4.3. 3.8. 3.0. 2.2. 1.8. Length. (cm). Frequency ...
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