This new lens has vivid color, wide aperture, small depth of field.
新的标头，颜色鲜艳，大光圈，浅景深，很不错。
A dynamic measurement technology is designed in order to dispose of imperfection that is small field of view and small depth of field of monocular micro-vision probe.
为了解决现有坐标测量机中的单目显微视觉测头视场小和景深小的缺点，提出了显微视觉测头的动态测量方法。
Portrait mode chooses a large aperture (a small 'f' number) which will make the depth of field (the amount of your shot in focus) smaller.
人像模式用一个大光圈(f值小)，而让景深(清晰对焦的那部分)变小。
Proper focusing is critical at night because small apertures are often impractical — therefore one cannot afford to waste mispositioning the depth of field (see hyperfocal distance).
在夜晚，合适的聚焦非常关键，因为小光圈常常不合实际。因此，你不能错误地定位景深 （超焦距）。
The simplest way to do this is to choose a small Aperture setting (a large number) as the smaller your aperture the greater the depth of field in your shots.
最简单的办法是选用最小的光圈设定（镜头上显示的最大的数字），光圈越小，你所获得照片的景深就会越大。
Anchor bars at small depth side are always in press condition and timbering effect is limited from excavation and timbering of the tunnel to a steady displacement field and stress field.
从隧道开挖支护直至隧道位移场应力场稳定，埋深浅侧的锚杆基本上处于受压状态，支护效果有限。
Anchor bars at small depth side are always in press condition and timbering effect is limited from excavation and timbering of the tunnel to a steady displacement field and stress field.
从隧道开挖支护直至隧道位移场应力场稳定，埋深浅侧的锚杆基本上处于受压状态，支护效果有限。
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