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德语中，动词是句子的灵tt 魂，正确地使用动词非常重要，而它的多端变化也给初学者造成了很大的困难，除了在句中根据不同主语人称（单，复数，......
目的 观察羟基喜树碱 (hydroxycom ptothecine,HCPT)联合 Ver对实验性增殖性玻璃体视网膜病变 (proliferative vitreoretinopathy......
A revised flexible roller contact tire model (RFRC tire model) is proposed,which considers not only the geometric and fl......
Powerline communications (PLC) have drawn great interest in recent years. However, most PLC standards such as HomePlug A......
Value of preoperative magnetic resonance imaging measurements in thoracic percutaneous vertebroplast
Background Increasing the successful puncture rate of the percutaneous vertebroplasty (PVP) in thoracic vertebral compre......
Using the high precision data of the proper motions and parallaxes from Hipparcos catalogue, we obtained the orbital par......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Reassessment of historical sections from the Paleogene marine margin of the Congo Basin reveals an a
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
目的 探讨乙肝免疫球蛋白(HBIG)预防乙型肝炎病毒(HBV)母婴垂直传播的效果.方法 以2001年1月至2005年5月在台州医院产科初次进行妊......
为实现短路故障的选相分断，首先需要还原故障电流波形，快速、准确地完成零点预测。为此，国内外学者提出了安全点算法、自适应算法、改......
对洞庭湖区水平方向与垂直方向的湖面风速与陆地风速进行对比分析.结果表明:在水平方向上,湖面平均风速比陆地平均风速大2.3 m/s,......
This paper reports on the effect of various micropropagation factors of Gmelina arborea Roxb. through multiple shoot ind......
提出一种基于流量时间法、活塞为标准器的家用冷水水表示值误差动态全自动检定方法。这种活塞装置可根据设置由步进电机推动产生标......
In this paper,flume experiments are focused on sediment transport inside and outside the surf zone.According to the ener......
