如果所有的图像具有相同的傅里叶光谱特征，而这些光谱却具有着不同的尺度，在输出平面上便可获得分形图像。
If all pictures are characterized by similar Fourier spectra, which have different scales, the optical fractal pattern can be obtained in the output plane.
在地震长波长情况下，相同特征尺度的圆形干裂纹比薄的干裂纹对弹性波衰减更有效。
Under the circumstance of seismic long wavelength, the circular dry fracture is more effective in attenuation of elastic wave than thin dry fracture when the characteristic scale is same.
在不同空间尺度上，影响鸟类栖息地选择的环境因素亦不相同；
The environmental factors that influenced the avian habitat selection are various with different spatial scales.
生物在不同的空间尺度上控制着地貌的发育，但空间尺度不同，生物影响地貌的作用是不相同的。
Organisms control landform evolution at different scales, but effects of organisms on geomorphology are different in scales.
数值结果表明：在扩张比和进出口压力相同的条件下，微喷管出口马赫数随着微喷管尺度的减小而减小。
The numerical results also show that the first sonic point position moves away from the throat to the outlet of the micro nozzle with decrease of the throat width.
非晶合金结构具有自仿性，在微米、纳米尺度具有相同的分维数；
The amorphous alloy used in the study has a unique structure.
非晶合金结构具有自仿性，在微米、纳米尺度具有相同的分维数；
The amorphous alloy used in the study has a unique structure.
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