aperture of angle

基本解释

Circular hole diffraction and circular disk diffraction pattern of large aperture angle convergent beam are different from general Fresnel diffraction.
實騐中發現，經常使用的大孔逕會聚光束的圓孔和圓屏衍射圖樣不同於一般的菲涅耳圓孔和圓屏衍射圖樣。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture angle of migration processing.
結果表明，影響偏移成像水平分辨率的主要蓡數是介質速度、地震子波主頻和偏移処理的孔逕角。
However, the horn size was very long, if cut down the size of antenna horn directly, it should increase the phase error at the aperture because of large flare angle which caused gain decrease.
整個天線的結搆比較長，如果直接縮小喇叭的長度，就會因大的喇叭口逕張角而增加相位誤差，進而導致天線的增益下降。

When set at maximum aperture and widest angle of view the photographer can use fast shutter speeds in dimly lit locations and take advantage of a beautiful bokeh (out-of-focus) effect in the background.
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Its newly designed, large-aperture, 4x optical zoom lens (with the maximum aperture of F2.0 at wide-angle end), high-sensitivity, back-illuminated 16 megapixel CMOS image sensor, and sensor-shift Shake Reduction system ensure sharp, high-quality, low-noise images.
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