... extended bonds 延期偿付债券,延期债... extended aperture 外展纹孔口 extended foundation 扩展基础 ...
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extended-aperture uniformly 扩展孔径
extended pit aperture 外展纹孔口
extended field elliptical aperture lens 可扩展扫描椭圆孔镜头
When viewing extended objects, the apparent brightness seen in the eyepiece is a function only of aperture and magnification, it is not related to focal ratio.
当观察扩展光源时，目镜中所看到的亮度只跟孔径和放大率有关，它跟焦比并没有关系。
So far people have put forward some basic methods for evaluate the MTF values of the lens, such as knife-edge method, laser speckle method and extended frequency aperture (EFA) method.
迄今为止，人们已经提出了诸如刃边法、激光散斑法、扩展频率孔径法等多种测量离散成像器件MTF的方法。
The visual field of the reconstructed image is extended and is not limited by the aperture of the lens.
这个全息图重现像的观察范围很宽，视场不受透镜孔径的限制。
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