Radiographic pelvimetry is of limited value in managing most cephalic presentations.
大多数头先露时放
骨盆测量价值有限。
照相术的
;
光,;学,辐学;断层摄
术;
照相检验；放
伤照片伤超声检验；照相检查；伤Radiographic pelvimetry is of limited value in managing most cephalic presentations.
大多数头先露时放骨盆测量价值有限。
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。该系统用于焊缝的检测。从硬件和软件两个方面描述了系统的工作原理。
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