line standard of length
常見例句
- Niumu spectrum to the standard line, with signs that the level of sound, but does not show the length of the value of the sound.
紐姆譜以橫線爲(wèi)標(biāo)準(zhǔn)，用符號(hào)表示音的高低，但不顯示音值長短。
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