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型槽
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  shaped groove
     Influence of the Geometric Parameters of the V Shaped Groove on Initialization of Ideal Crack in Precision Cropping
     V型槽几何参数对裂纹萌生的影响规律
短句来源
     The reasonable geometric parameters of the V shaped groove were determined: the flare angle is 90°,the proportion of the groove depth to the diameter of the bar is 0 1,and the proportion of the radius at the groove bottom to the groove depth is 0 08.The mathematical representation which can correctly illustrates the stress concentration at the groove bottom was established.
     采用正交法设计了实验方案,通过有限元法的数值模拟实验,确定了V型槽几何参数的合理取值条件,即槽外形夹角为90°,槽深与棒料直径的比为0 1,槽底圆角半径与槽深的比为0 08.同时,建立了可以衡量槽底应力集中程度的数学表达式.
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  “型槽”译为未确定词的双语例句
     Along [011] and [011] direction on (100) crystal face of GaAs wafer, the dovetail and V-type slots have been successfully etched by the etchant H_2SO_4-H_2O_2-H_2O in properation as 1:8:8. The result is satisfactory to requirement of the laser design.
     实验证明,使用H_2SO_4∶H_2O_2∶H_2O=1∶8∶8腐蚀液,在GaAs(100)面上沿[011]和[01(?) ]方向开槽分别获得燕尾槽和V型槽衬底,满足了器件设计的要求。
短句来源
     The analytical results show that plastic yield occurs in the tip of V-shaped notch of 45 steel bar,20 steel bar and 60Si2Mn bar under the condition of given parameters,but the heat crack only appears in the tip point of V-shaped notch of 60Si2Mn bar.
     研究结果表明,对于45#钢、20#钢、60Si2Mn棒料来说,在现有给定的参数下,其V型槽尖端均发生了塑性变形,但只有60Si2Mn棒料在其V型槽尖端点产生了热裂纹。
短句来源
     A experi-mental study of the use of reactive ion etchingdeep U trench has been made with CF_4、SF_6、Ar、O_2、Cl_2、BCl_3、and their mixture. The Cl_2+Ar gas mixture can use to etch deep U trenchand that the U trench of 2μm width 6μm depthhas been made successfully.
     本文报道了采用CF_4、SF_6、Ar、Cl_2、O_2、BCl_3、CHF_3等气体及其混合物进行的RIE(反应离子刻蚀)实验,发现Cl_2+Ar 最适用于深U 型槽的刻蚀,并成功地刻出了2μm 宽、6μm 深的U 型槽.
短句来源
     The result indicated that the stress exerting on working groove of the mandrel is close to the W6Mo5Cr4V2 fatigue limit.
     结果表示,冷轧芯辊工作型槽表面受到的应力接近了高速钢W6Mo5Cr4V2的疲劳极限。
短句来源
     Investigation of U-Groove Isolation Technology
     U型槽隔离技术研究
短句来源
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  相似匹配句对
     (2)C shape;
     C ;
短句来源
     The V-Groove Optical Fiber Joint
     V光纤连接器
短句来源
     (3)D shape.
     D
短句来源
     Investigation of U-Groove Isolation Technology
     U隔离技术研究
短句来源
     LOAD REDUCING SLOT
     减荷
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  shaped groove
The porous surfaces are plain tubes covered with metal screens, V-shaped groove tubes covered with screens, plain tubes sintered with screens, and V-shaped groove tubes sintered with screens.
      
The experimental results show that sintering metal screens around spiral V-shaped groove tubes can greatly improve the boiling heat transfer.
      
The results show that the bandwidth of the cosine-shaped groove SWS is much wider than that of rectangular-shaped groove one.
      
The calculating precision of a new Fourier's expansion-differential method presented by us for analyzing the arbitrarily shaped groove guide is improved in this paper.
      
The intracorporeal wall is dissected by a screw-shaped groove.
      
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The evolution process of disturbances in the barotropic atmosphere is investigated by WKBJ method. It is suggested that the criterion of developing perturbation should be the growth both of its total energy and mean amplitude. It is shown by the theoretical analysis that the developing perturbations stretch its wavelength with time, and the damping ones shorten its wavelength.If the basic current is purely zonal, the "leading waves" in the southern region of the Jetstream and the "trailing waves" in the northern...

The evolution process of disturbances in the barotropic atmosphere is investigated by WKBJ method. It is suggested that the criterion of developing perturbation should be the growth both of its total energy and mean amplitude. It is shown by the theoretical analysis that the developing perturbations stretch its wavelength with time, and the damping ones shorten its wavelength.If the basic current is purely zonal, the "leading waves" in the southern region of the Jetstream and the "trailing waves" in the northern region are developing, and the axis (trough or ridget) tends to be N-S direction; While the leading waves in the northern region of the Jetstream and the trailing waves in the southern region are damping ones, its axis tends to be W-E direction. The cases of nonzonal basic current are also discussed. It is concluded that some processes of "retrogradation of ultralongwave" are in fact due to the eastly propagation of developing and broadenning trough.

本文应用WKBJ方法研究正压准地转模式中小扰动的演变过程,提出扰动发展的判据应是扰动总能量和平均振幅同时增长。理论推导给出:正压扰动发展时波长变长,衰减时波长变短。文中详细地讨论了基本气流为平直西风的情况,得出急流南导波、急流北曳波为发展型,发展过程中槽线渐趋南北指向;急流北导波、急流南曳波为衰减型,槽线日渐趋于东西向。文中还讨论了基本气流为非平直气流情况,指出所谓“超长波后退”过程在一些情况下是发展型槽东移和波长变长所致。

By using mathematical methods,the present article analyses the affection on the metal flow resistance attributed to the dimensions of the primary cavity and compares several of its commonly-used designing schemes,the optimal theoretical value of S in the fourth scheme is also deduced.

本文用数理方法,分析了予锻型槽中诸尺寸因素对金属流动阻力的影响,并把几种常用的予锻型槽设计方案作了比较,同时还推算出了第四设计方案中之δ的理论最佳值。

The three dimensional Navier-Stokes equation describing the recirculating flow field behind the trailing edge of the Barchan Dune vortex generator was solved numerically by the Artificial Damping and Compressibility Method. The structure and stability of the ox-horn shaped vortex scroll were analysed. Due to the arching effect and the pumping effect of the diverging sources at the tips, the Barchan Dune vortex serolls possess tenacious anti-disturbance property. Experimental results revealed that, compared with...

The three dimensional Navier-Stokes equation describing the recirculating flow field behind the trailing edge of the Barchan Dune vortex generator was solved numerically by the Artificial Damping and Compressibility Method. The structure and stability of the ox-horn shaped vortex scroll were analysed. Due to the arching effect and the pumping effect of the diverging sources at the tips, the Barchan Dune vortex serolls possess tenacious anti-disturbance property. Experimental results revealed that, compared with V-gutter at the same blockage ratio, the dragloss of the Barchan Dune vortex generator was reduced by 75-80%; the range of lean blow-out limits was extended to about 8 folds at the same inflow rate; and the ignition of combustible mixture was much easier. The experiments supported the diagnostic criterion for vortex stability proposed by Gao Ge in reference [1].

使用实验方法及数值求解三维Navier-Stokes方程,研究了模拟新月形沙丘的BD型旋涡发生器的后缘涡管气流结构及稳定特性.由于拱形效应及涡管尖端发散而产生的抽气作用,BD型涡管具有顽强的抗干扰性能。实验结果表明,和同样阻塞比的V型槽相比,BD型旋涡发生器的阻力下降75—80%,旋涡火焰的贫油稳定性得到大幅度扩展,并具有良好的点火性能.实验结果印证了作者在文献[1]中提出的提高旋涡稳定性的基本原则。

 
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