The spray nozzle with double dislocation, dripping ink density, print accuracy in an important breakthrough.
该喷头采用错位双排喷孔，滴墨密度大，是在打印精度上的一次重要突破。
Objective: To observe and measure the Sacro-iliac joint and correlative parts for clinical reference in Hemipelvic dislocation internal fixation by double head hollowed screw.
目的：通过骶髂关节及相关的解剖观测，为半盆脱位骶髂关节穿钉固定术提供临床应用依据。
ObjectiveTo assess the efficacy and results of cervical double door laminoplasty for the treatment of cervical spinal cord injury without radiographic spinal fracture and dislocation.
目的观察颈后路双开门椎管扩大成型术治疗无骨折脱位型颈脊髓损伤的临床疗效。
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