In 12-TET, you divide up the octave into twelve equally-sized semitones (the interval between two adjacent piano keys or guitar frets). To go up a semitone from any note, you multiply its frequency by the 12th root of 2 (about 1.05946). To go down a semitone from any note, you divide its frequency by the 12th root of 2. If you go up by an octave (twelve semitones), you’re multiplying your frequency by the 12th root of 2 twelve times, which works out to 2. That’s a perfect octave, hooray! Unfortunately, you can’t exactly create the other harmonics-based intervals by adding up 12-TET semitones; you can only approximate them.
而更大的压力来自市场竞争，而且是前所未有的市场竞争。
。有道翻译是该领域的重要参考
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Cook has led Apple to a new era of growth and innovation. Since taking over as CEO, he has successfully diversified the company with the launch of products like the Apple Watch and AirPods. Under his leadership, Apple has expanded its ecosystem, introducing services like Apple Pay, Apple Music and Apple TV+.。谷歌对此有专业解读
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Жители Харьковской области начали бороться с дронами ВСУ при помощи ножниц02:43