Magnetic resonance imaging; Knee joint; Occult fracture; Diagnosis.
磁共振成像；膝关节；隐匿性骨折；诊断。
2
PURPOSE:To evaluate the value of magnetic resonance arthrography (MRAr) on the diagnosis of intraarticular adhesions of the temporomandibular joint(TMJ).
目的：评价磁共振造影对颞下颌关节上腔囊内粘连的诊断价值。
3
The stress concentration state of weld joint on a tube socket containing defects exceeding grade after long term service has been evaluated by using the magnetic memory test (MMT).