Radiographic pelvimetry is of limited value in managing most cephalic presentations.
大多数头先露时放射骨盆测量价值有限。
线照
术的
斯,斯线;
的;
术;
验；放射线探伤验；射线照
；射线探伤Radiographic pelvimetry is of limited value in managing most cephalic presentations.
大多数头先露时放射骨盆测量价值有限。
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
图象自动识别跟踪系统。该系统用于焊缝的射线测。从硬件和软件两个方面描述了系统的工作原理。
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