Fourier transformer

例句：

1. 1.The Fourier transformer is used to analyze the frequency content of signals.
   傅里叶变换器用于分析信号的频率内容。
2. 2.The engineer used a Fourier transformer to improve the accuracy of his measurements.
   工程师使用傅里叶变换器来提高他测量的准确性。
3. 3. The Fourier transformer was used in the development of new medical imaging techniques.
   傅里叶变换器在开发新的医疗成像技术中被使用。