“sound concentrator”的概念、定义、翻译、参考文献-科学参考

单词	sound concentrator
释义	sound concentrator Physics sound concentrator声聚焦器，聚声器
随便看	component of a curve component of a field component of a graph component of a group component of a link component of a manifold component of a matrix component of an element component of a point component of a signal component of a space component of a tensor component of a vector component of a vector field component of jacket platform component of natural gas component of space component of the four displacements component of the identity component of the six cardinal points component of the three arrangers of time component of variance component-of-variance model component part component; part

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