“velocity level”的概念、定义、翻译、参考文献-科学参考

单词	velocity level
释义	velocity level [vǝ`läs·ǝd·ē ´lev·ǝl] ^ACOUSTICS A sound rating in decibels, equal to 20 times the logarithm to the base 10 of the ratio of the particle velocity of the sound to a specified reference particle velocity.
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