At fullaperture, the depth of field (DOF) is extremely shallow.
在全光圈，景深(自由度)是非常肤浅的。
2
VRT could clearly display fullaperture 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。
3
The simulation experiments show that the fullaperture perforation rack which is manufactured by prepared special binder can meet the requirements of application.