For flash photography, set the aperture at f.5.6.
用闪光照相，要把光圈孔径定为 5.6。
1.(照相机的)光圈;孔径,口径
2.孔,隙缝
3.【摄】光圈
1.the hole in a camera that lets light in
2.a small narrow hole
1.The aperture through which the sand runs is so tiny that first it seems as if the level in the upper glass never changes.
沙子穿过的孔太小了，第一次看到它时就好像上面的沙子永远没有变化。
2.You get the same amount of light with a large aperture and a fast shutter speed as you do with a small aperture and a slow shutter speed.
你使用大光圈以及慢速快门所得到的光和你使用小光圈以及高速快门得到的光是一样多的。
3.Computer keyboard keys aperture stains and dust to clean up, these seem to have to carefully place, often let our cleaning job not start.
电脑键盘的按键缝隙容易留下污渍和灰尘，这些清洁起来似乎不得不小心翼翼的地方，往往让我们的清洁工作无从下手。
4.Synthetic Aperture Radar Observations of the Surface Signatures of Cold- Season Bands over the Great Lakes .
大湖上空冷季带地面信号的合成孔径雷达观测。
5.If the endometrium polyp is not prompt excises, easy to block the oviduct aperture, the disturbance fertilized egg bed and the growth.
子宫内膜息肉如果不及时切除，容易阻塞输卵管开口，干扰受精卵着床和发育。
6.The snail's eye, a more sophisticated version of that of the nautilus mollusk, works rather like the aperture of a pinhole camera.
是一种比鹦鹉螺类软体动物更复杂的眼睛，工作原理像是针孔相机。
7.Perhaps the most interesting piece was an old box- styled camera, one of the first to use an aperture.
也许最有趣的器械是一个古老的盒式相机，这也是最早利用光圈相机之一。
8.Don't hand-hold a lens at a slow shutter speed and a wide aperture and then worry about whether the lenses sharp or not.
不要在慢速快门和大光圈时手持相机，然后再去担心镜头的锐度。
9.The reflectivity measurement system makes it very easy to measure reflectivity distribution on large aperture components.
该系统的使用大大简化了元件表面反射率分布的测量。
10.Speckle reduction is always one of the important tasks in the application of SAR(Synthetic Aperture Radar) images.
SAR（合成孔径雷达）图像斑点抑制一直是SAR图像应用中的一个重要课题。