Radiographic pelvimetry is of limited value in managing most cephalic presentations.
大多数头先露时
骨盆测量价值有限。
照相术
;;;
学,辐学;,内窥镜
;;;断层摄
术;
照相
验；探伤照片探伤超声验；照相
；探伤Radiographic pelvimetry is of limited value in managing most cephalic presentations.
大多数头先露时骨盆测量价值有限。
In this paper,one X-ray image autotrack system for weld radiographic inspection is introduced, and itsworking principle is described from the hardware and software.
介绍了一种焊缝X光图象自动识别跟踪系统。该系统用于焊缝
测。从硬件和软件两个方面描述了系统工作原理。
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