| 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.  | 
	
| 随便看 | 
	
  | 
	
科学参考收录了103327条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。