二维声波，用时域有限差分法计算固体声场，很好的初学者使用。-Dimensional sonic, finite difference time-domain method to calculate the solid sound field, good for beginners to use.

Microwave radar and microwave-induced thermoacoustics, recently proposed as promising breast cancer detection techniques, each have shortcomings that reduce detection performance. Making the assumption that the measurement noises experienced when app