Major thirds are worse in 12-TET. Recall that the major third you get from the overtone series is a frequency ratio of 5/4. In 12-TET, you make a major third by adding four semitones, which means that you multiply your frequency by the 12th root of 2 four times. That comes to 1.25992, which is noticeably higher than 5/4. Thirds in 12-TET are quite sharp compared to what your ears are expecting from natural harmonics.
例如，在电机方案的选择上，由于需要优先基于大规模、一致性批量制造这个前置条件，当前电机供应链尚未具备经验证的轴向磁通或其他形态电机的稳定供货能力，因此我们暂无其他创新形态设计产品的排期。，推荐阅读新收录的资料获取更多信息
，更多细节参见新收录的资料
git merge upstream/main，推荐阅读新收录的资料获取更多信息
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