Objective To determine if calcium phosphate cement can enhance vertebral pedicle screw fixation in the osteoporotic spine through periodical anti-bending test.
目的本实验旨在从周期抗屈试验方面证实磷酸钙骨水泥对椎弓根螺钉固定的强化作用。
Objective to discuss mental health status and enhance approach of mental diathesis of sci-tech periodical editors.
目的了解科技期刊编辑的心理健康状况，探讨提高心理素质的途径。
The paper discusses how to improve the utilization ratio of periodical in university library providing with subjective and objective elements.
就提高图书馆期刊利用率的问题，从主观和客观因素进行了较为全面的分析，对如何提高期刊利用率进行了探讨。
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