rud

The effects of the process parameters of RUD on drilling process are systematically conducted .

系统研究了在恒速进给加工条件下，旋转超声钻削参数对加工过程的影响。

Numerical Computation of External Heat Flux of Low Earth Orbit Spacecraft by RUD

计算近地轨道航天器空间外热流的RUD方法

Delayed open reduction and internal fixation for Rud ё I ⅲ Pilon fractures

延迟切开复位内固定治疗RudёiⅢ型Pilon骨折

Under the machining condition of constant feed rate , the effect of RUD and conventional diamond drilling on drilling process are compared .

在恒速进给加工条件下，实验比较了旋转超声钻削和普通钻削对加工过程的影响；

The disadvantage of this study is short of the effort of cost containment by the RUD with the economical index .

不足之处在于本研究没有使用经济学指标综合考虑合理用药对控制费用方面的影响。

A city of northwest Afghanistan on the Hari Rud east of Kabul .

阿富汗西北部的一城市，位于喀布尔以东，在哈里河上。

Based on a single-point diamond grinding model and the elasticity theory , the stress field model in conventional ultrasonic drilling and RUD are deduced .

分别推导出普通超声钻削和旋转超声钻削过程中，工件在单颗磨粒作用下的应力场分布模型；

Objective To evaluate the clinical use of delayed open reduction and internal fixation technique in the treatment of Rud ё I ⅲ Pilon fractures .

目的评估采用延迟切开复位内固定治疗RudёiⅢ型Pilon骨折的临床效果。

The tool wear mechanism is studied by using a digital microscope to observe the topography of the diamond tool in RUD of advanced ceramics . 5 .

通过使用数字显微镜跟踪观察旋转超声钻削过程中金刚石工具表面形貌变化，研究了旋转超声钻削先进陶瓷过程中的工具磨损机理。

Based on the thorough analysis on the state of arts of RUD and the existing problems , the experimental and theoretical studies on RUD are conducted in this thesis .

本文在深入剖析旋转超声钻削技术现状以及存在问题的基础上，对旋转超声钻削先进陶瓷的实验和理论研究进行了深入的研究。

Based on the deduced models and the indentation fracture mechanics , material removal rate ( MRR ) in RUD being higher than that in conventional ultrasonic drilling is explained .

并从工件应力场的角度解析了旋转超声钻削材料去除率高于普通超声钻削材料去除率的现象。

Methods From May 1997 to June 2003 , 38 patients with Rud ё I ⅲ Pilon fractures underwent immediate calcaneal traction as well as treatment with methylprednisolone and mannitol .

方法1997年5月～2003年6月，对38例RudёiⅢ型Pilon骨折患者急诊行跟骨牵引，同时使用甲基强的松龙和甘露醇。

As one of the cost-effective machining methods for advanced ceramics , rotary ultrasonic drilling ( RUD ) is a hybrid machining process that combines the material removal mechanisms of conventional ultrasonic drilling and diamond grinding .

旋转超声钻削是一种先进陶瓷材料孔加工的高效加工方法。它是一种集普通超声钻削和磨削加工为一体的复合加工方法。

In [ 7 ] uniform design sampling ( UDS ) and random uniform design ( RUD ) were given . This paper gives the first two order moments of samples of UDS and RUD .

[7]中给出并研究了均匀设计抽样（UDS）及随机化均匀设计（RUD）的一些优良性质，作者给出该设计和抽样的一、二阶矩。

Compared with conventional diamond drilling , RUD can significantly decrease the cutting force , decrease the surface roughness of drilled holes , and avoid the fracture of advanced ceramics during RUD process . 2 .

相对于普通钻削，旋转超声钻削能有效降低切削力，降低加工孔的表面粗糙度，以及避免先进陶瓷工件在加工中的破裂。