According to the requirements of, the technological reconstruction of locking control of shaft signal and machine operation equipment is carried out.
根据《煤矿安全规程》规定的要求，对井口信号与操车设备实施闭锁控制的技术改造。
Objectives: To investigate whether locking screws offer any advantage over nonlocking screws for plate fixation of humeral shaft fractures for weight-bearing applications.
目的：研究加载负荷时锁定螺钉钢板固定肱骨干骨折是否优于非锁定螺钉钢板。
Are Locking Screws Advantageous with Plate Fixation of Humeral Shaft Fractures? A Biomechanical Analysis of Synthetic and Cadaveric Bone.
锁定螺钉钢板固定肱骨干骨折有益吗？尸体骨和人工骨的生物力学分析。
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