aperture
n. 孔,洞; (照相机,望远镜等的)光圈; 孔径; 隙缝
An aperture is a narrow hole or gap.
Through the aperture he could see daylight.
透过缝隙,他能看见日光。
In photography, the aperture of a camera is the size of the hole through which light passes to reach the film.
Use a small aperture and position the camera carefully...
用小光圈,仔细调整相机位置。
The camera has a 32mm lens with a maximum aperture of f/4.5 and a fixed shutter speed of 1/100sec.
这架相机有一个32毫米的镜头,最大孔径为f/4.5,固定快门速度为1/100秒。
1. a device that controls amount of light admitted
2. a natural opening in something
3. an man-made opening; usually small
Characteristics of synthetic aperture processing in radar altimeter show that range correction should be done.
通过分析高度计中合成孔径处理的特点,说明在商度计中使用合成孔径技术时,应该进行距离校正.
Uncertainties and complexities exist in the jamming effectiveness evaluation of synthetic aperture radar ( SAR ) .
SAR 干扰效果评估具有很大的不确定性和复杂性.
Synthetic aperture technology is introduced to microwave radiometer in order to improve the space resolution.
为了提高微波辐射计的空间分辨率,出现了综合孔径微波辐射计.
The optimum aperture of an aerator is smallest at the water depth of 4 m.
一般水深在4m左右,曝气器的最优孔径最小.
The only light came through a narrow aperture.
仅有的光亮来自一个小孔.