It utilizes the evanescent field confined at the tiny aperture for providing images of object surfaces with a resolution beyond the classical optical diffraction limit.
这种显微镜利用局限在微小孔径上的隐失场提供物体表面形貌的细节，其分辨率可突破传统光学的衍射极限。
The aperture through which the sand runs is so tiny that first it seems as if the level in the upper glass never changes.
沙子穿过的孔太小了，第一次看到它时就好像上面的沙子永远没有变化。
There is a reducing-enlarging relation between the dimension and the diffracting intensity for an aperture. This relation may be used for the engineering measurement of tiny dimension.
衍射孔径线度与衍射光强存在一定的缩放关系，这一关系可以应用于微小尺寸的工程测量。
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