Radiographic testing, an important nondestructive testing means, is widely used in size measurement of steels.
射线检测技术是一种重要的无损检测技术，目前在钢材的尺寸测量中得到了广泛的应用。
Main Outcome Measurement: Radiographic assessment of fracture healing and clinical assessment of shoulder function.
主要疗效评价指标：骨折愈合的影像学及肩关节功能的临床检查。
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