升降重音 rising-falling accent
双重洁音降噪设计 PAD
重音升降曲线 stress contour
重降音
Heavy flat
以上为机器翻译结果，长、整句建议使用 人工翻译 。
上世纪末，我国音乐理论家们在固定调唱名法的基础上，设计了升、降及重升、重降音在内的三十五个唱名的协变唱名法。
In the end of last century, based on the fixed sol-fa, 35 covariant sol-fa, which includes up, down, re-up and weight down were designed by Chinese music theorists.
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