variable aperture meaning in Chinese

可变孔径

These ions pass through a slit of variable aperture and then enter the magnetic field analyzer .
这些离子通过可变宽度的狭缝进入磁场分析器。
Mode field diameter measurement - variable aperture method in the farfield
模场直径测量.远场可变孔径法
Chromatic dispersion measurement of multimode graded - index and single - mode optical fibers by spectral group delay measurement - variable aperture method in the farfield
利用光谱组延迟测量法进行多模渐变折射率光纤和单模光纤的色散测量.远场可变孔径法
Based on the theoretical expression of the average intensity in the fourier transforming and imaging optical system with variable aperture , an algorithm is developed to change the intensity data versus the aperture radius into the bessel - fourier - transform - and - the - inversion of a function of the height - height correlation function . three samples of gaussian correlation are used for the experimental demonstration
在理论分析和实验测量中，我们采用了变孔径的傅立叶变换和成像系统，由所得到的像面光强的解析式，建立了将平均光强随孔径的数值变化关系转化为正逆傅立叶变换对，从而恢复出表面的高度?高度相关函数。