aperture基本解释
n,孔，穴；（照相机，望远镜等的）光圈，孔径；缝隙,同近
Through the aperture he could see daylight..通过这个孔隙他能看到日光。
孔，穴；（照相机，望远镜等的）光圈，孔径；缝隙英释中释na small hole or space in something
synthetic aperture,合成孔径.短语
