It is difficult to study the contribution of each soundradiator to total cutting noise in a cutting system by means of traditional theoretical or experimental methods.
用传统的理论或实验方法研究切削过程中各个声辐射体对总体切削噪声的贡献比较困难和繁杂。
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In this paper, the sound field of a more general directional radiator in a stratified medium is treated, and the concept of directivity is applied to calculation of the normal modes.