目的探讨极外侧型腰椎间盘突出症的诊断与治疗方法。方法回顾分析2005年1月~2009年12月收治25例极外侧型腰椎间盘突出症患者资料,其中椎间孔型17例,椎间孔外型8例。分别采用
LiMn2O4 was synthesized rapidly by microwa e heating. The product phases of the microwave synthesis and conventional solid-state synthesis were comparatively in
生活离不开数学,也离不开圆锥曲线.当我们用“曲线与方程”的观点观察与分析身边的某些实际问题时,便会发现圆锥曲线就在我们的身边,它们能帮助我们解决许多实际问题.
The low-voltage-electromagnetic forming was applied to powder compaction. A series of experiments was performed to compact aluminum, copper and tin powders in a
To utilize industrial residue as building materials is not only the demand for modern concrete technology but also the requirements for maintaining ecological b
经过高一学年的努力学习,同学们已经掌握了相当的英语词汇和语言知识,打下了比较扎实的语言基本功,具备了比较强的听、说、读的能力,希望在写的能力上也有所提高。但是写作是一项
“分解主旨,设点分述”能为写作提供一个支点,一个思路上的强有力的支点。这一支点是一种实用便捷的构思方式,是一种表达思想、抒发情感、吐露心声的有效手段。化大为小、化虚为
The infuence of Cu dopant (x) and sintering temperature(Ts) on the troansport propeties of La2/3Ca1/3Mn1-xCuxO3 series samples prepared by Sol-Gel technique was
倒装句型是中学英语中的重要语法项目和重要考点之一。任何倒装句型都有其标志,这个标志也是构成倒装句型的条件。因此,只要搞清楚倒装标志就可以巧记倒装句型。 一、 寻找完全倒装标志,巧记完全倒装句型 所谓完全倒装句型是指当某一特点内容置于句首时,将谓语动词直接提前置于该特定内容后面而构成的倒装句型,其标志通常为: 1.Here, there, in, out, up, down, awa