At full aperture, the depth of field (DOF) is extremely shallow.

在全光圈，景深(自由度)是非常肤浅的。

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VRT could clearly display full aperture of screw orbit, location of screw and angle of fixation and hence was superior to X-ray plain film and MPR.

VRT成像能清晰显示螺钉轨道全径、螺钉位置及固定角度，并优于X 线片及MPR成像。

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The simulation experiments show that the full aperture perforation rack which is manufactured by prepared special binder can meet the requirements of application.

多次模拟试验表明，使用研制的专用粘结剂生产的全通径射孔弹架完全满足使用要求。

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Especially when used with large aperture lenses, the EOS 6D camera's full-frame sensor offers a tremendous degree of creative control over depth-of-field, helping users to achieve pro-quality cinematic effects in Full HD video recordings.

ENGADGET: Canon unveils EOS 6D DSLR: full frame sensor and WiFi for $2,099 in December