[Clinical study of percutaneous short-segment injured vertebra pedicle screw fixation combined with bone grafting in treatment of thoracolumbar fractures]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiJia L, Li X, Qian Y, Chen M.
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Gaoya dianqi, 1981 当前,在高压开关的操动系统中,液压机构日益增多。高压开关的液压操作机构,要求打一次压能保持72小时以上。检修人员在检修中,如何能在很短时间内检查出液压机构系统的渗漏情况,测算出油泵起停的时间,是一个很有实际意义的问题。 去年以来,我们采用了百分表法进行测定,可在很短时间内测出液压系统的渗漏情况来,,从而能对检修质量很快地作出准确的鉴定。所谓百分表测定法 ...
doaj
[Application of autologous pedicled nasal mucosal flaps by "three-step" strategy in repairing of cerebrospinal fluid leakage following transsphenoidal pituitary adenoma surgery]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiQin S, Liu Z, Jia F, Ruan B, Long R.
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[Central Nervous System Infection After Neuroendoscopic and Microscopic Combined Hematoma Removal: Risk Factors and Construction of a Nomogram Prediction Model]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLiang D, Zhou K, Shu B.
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Gaoya dianqi气体绝缘金属封闭输电线路（GIL）是为超长距离、大容量的地下输电线路开发的一种电力设备，作为一种新型输电设备，得到广泛应用。与气体绝缘开关设备（GIS）相比，由于GIL内部的绝缘气体总量大，安装环境复杂，发生泄漏后对环境及电力系统安全影响很大。在中国特高压苏通管廊工程中，GIL中SF6气体的总量高达750 t，文中通过局部包扎法、整体扣罩法和氦检漏3种检漏方法的研究和比较，针对不同形状的特高压GIL极低漏气率要求，研究了氦质谱真空检漏的检测方法、试验装置及关键参数，并应用于长度为20 ...
郝宇亮 +5 more
doaj
[Post-aging comparative study of snowplow and conventional techniques for the resin restoration of defective primary teeth]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHan M +5 more
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[POEMS syndrome misdiagnosed as systemic sclerosis: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLiang J, Zhang X, Yao H.
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[Current status and future directions of stability reconstruction following spinal tumor resection]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhou J, Dong J.
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[Establishment and validation of a risk prediction model for scoliosis after Nuss procedure in children and young adults with pectus excavatum]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLi B, Zhang Q, Sun Y.
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