Using the method of pre-support through hammering wedge,the cave mouth digging work of No.
简述了板石矿业公司上青矿640主运输平巷在硐口段施工过程中,克服地质条件复杂、多变的现状,采用撞楔超前支架法施工,硐口掘凿获得成功。
A New Design for Preceding Support of the Hanging and Striding Pattern on Laneway Roof
掘进巷道悬挂式迈步超前支架的方案设计
Research and Application on High Mining Height Four Link Forepoling Hydraulic Support
大采高四连杆超前液压支架的研制与应用
Research on Withdrawing Support Technology of Advanced Construction in Last Stage Channel of Fully Mechanized Mining Face
综采面超前施工末采通道回撤支架技术研究
Design and Research of the Automatic Advanced Hydraulic Bracket in Compositive Area;
综放面端头自移式超前支护液压支架的设计研究
Making Trial of Forward Supporting Hydraulic Support for Fully Mechanized Coal Caving
超前支护式液压支架在综采放顶煤工作面的试用
Effect of Ultrashort Wave Radiating Precordium on Coronary Restenosis;
心前区超短波照射防治PTCA支架术后冠脉再狭窄的研究
Clinical Applications of Ultrasonography in before and after Carotid Artery Stenting and Carotid Endarterectomy for Extracranial Carotid Stenosis;
超声在颅外段颈动脉支架植入术和内膜切除术前后的应用价值
Clinical Study of Myocardial Regional Perfusion and Ventricular Function Using Ultrasound Pre and Post Intracoronary Stent Implantation;
超声对冠状动脉支架置入术前后局部心肌血流灌注和功能的临床研究
Clinical value of color doppler ultrasonography to extracranial vertebral artery stenosis before and after percutaneous transluminal angioplasty and stent treatment
颅外段椎动脉狭窄经皮血管内成形术及内支架治疗前后彩色多普勒超声检查的临床价值
the arch over the opening in the proscenium wall.
支撑舞台前部的幕布的拱架。
Current provider does not support schema recordets.
当前提供程序不支持架构记录集。
a curved support that permits the supported object to rotate to and fro.
能让被支撑物前后旋转的弯曲的撑架。
Effect of Indwelling Anterior Urethral Stent to Anterior Urethral Stricture
留置前尿道内支架管治疗前尿道狭窄疗效观察
fan ,wall bracket, with a self-contained electric motor of an output not exceeding125w
有壁装支架的风扇,自备电机输出功率不超过125w
Study of Hemodynamics after Hepatic Vein Stent Implantation by Color Doppler Ultrsound
肝静脉内支架成形术后的彩色多普勒超声研究
Finite element analysis of a nitinol superelastic stent
超弹性镍钛合金血管内支架的有限元分析
Experimental Study on Acellular Heart Valves and Vessels by Ultrahigh Pressure Treatment
超高压脱细胞组织工程血管支架的实验研究
Clinical Investigate of Intracoronary Ultrasound and Self-expanding Stent-Radius;
冠脉内超声及自膨胀支架-Radius的临床应用研究