Wavelet transforms(WT) are proposed as an alternative tool to overcome the limitations of fast Fourier transforms(FFT) i......

铝合金具有易加工、质量轻、反射性良好等特点,是反射镜制造的常用材料。铝合金经过单点金刚石超精密车削后得到表面粗糙度为纳米......