“active muffler”的概念、定义、翻译、参考文献-科学参考

单词	active muffler
释义	active muffler Encyclopedia 工学有源消声器释 active muffler有源消声器在传统消声设备基础上加装次级声源，通过有源控制器实现次级声源强度的调节，以相消干涉方式实现噪声降低的一种声污染控制设备。
随便看	profile plots profile processing machinery profile projection profiler testing profile survey profile控制图 profile（form）grinding profilin profiling profiling float profilograph profinite profinite completion profinite group profinite group completion profit profitability index profitability ratio profitable thickness of coal seam profit and loss balance rent Profit Center profit crowdfunding profit distribution of conglomerate profit impact of market strategy profit maximization

科学参考收录了854744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。