压

The shear layer vortices dominate in the initial portion of the jet, which are a result of the K-H instability. The crossflow encounters an adverse pressure gradient ahead of the jet and separates to form horseshoe vortices under the pressure downstream, and they develop into the wake. The wake vorticity comes into being in the actions of an adverse pressure gradient and a wall-normal component of vorticity, which originates from the wall boundary and is entrained into the jet. The shear layer vortices encounter adverse pressure gradients in the lee of the jet and break down, leading to the formation of the CVP and the CVP is the most important characteristic of the jet in crossflow.

文中指出：剪切层涡源于射流与横流之间的K-H不稳定性；马蹄形涡的产生是由于射流喷口上游迎风侧的壁面边界层内存在逆压梯度，使流动发生了分离，在下游逆压梯度的挤压作用下，形成了马蹄形涡，马蹄形涡向下游发展，进入尾迹区；在逆压梯度和法向涡生成项的共同作用下产生了尾迹涡，尾迹涡源于壁面边界层，止于射流，并将部分涡量向上输运至射流内部的CVP；CVP是横向紊动射流的重要特征，剪切层涡破裂后，在逆压梯度的作用下CVP形成。

Bobbin used by wire joint should be crimping tools of 3 point crimping type.

压线帽使用的压线轴必须是专用配套的&三点抱压式&压接钳。

Note that to prevent the Whiteboard paper pad too high, or the closing largening pressure, superficial gilding, pressure shall not be published on the site of the concaveconvex by stamping, pressure concavo-convex, makes it possible for non-blocking, pressure at the site of concavo-convex also burn effect anodized, on the picture the appearance and quality.

需要注意的是要防止把白板纸垫得过高，或者是合压加大压力，而使表面不须烫金、压凹凸的部位高出烫金、压凹凸的部位，使得非烫金、压凹凸的部位也被烫上电化铝，影响画面的美观和质量。

Tropism properties of particles are used to describe stability and distributing properties of particles to depicting compactness, evaluating parameters of coarse particle in principal axis direction, asphalt mastics film thickness and particle area are used to e-valuate the compacting characteristics.

针对旋转压实法，利用不同压实功作用成型试件模拟压实过程，采用数字图像处理技术，研究沥青混合料的压实成型特性，提出了以集料颗粒的取向特性描述沥青混合料的稳定性，以集料颗粒的分布特性来反映混合料的密实程度，定义了集料颗粒主轴方向、沥青砂胶膜厚及颗粒面积比等参数来进行评价。

The effect of Nd2O3 on voltage and microstructure of ZnO varistor was studied, and a theoretical analysis of the mechanism of the effect was conducted.

研究了微量Nd2O3添加剂对氧化锌压敏阀片的压敏电位梯度的影响，并对其微观组织进行了分析研究，从理论上探讨了Nd2O3影响氧化锌压敏阀片压敏电位梯度与组织的机理。

Number of loaded circuits DN Value Preload Method for Providing a Preload Applied preload 1row 2.50 turns 70000 Yes fixed point preload 4055 Type of guide Shaft process method Ball cage Splined portion Hollow shaft Ball Precision None None None Recommended support unit on the Fixed Side type Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball None None Double-nut Right-hand, left-handmust be check...

载荷钢球圈列数 DN值预压预压方法预压负荷 3列 2.50圈 70000 有定位置预压 4545 导轨型号丝杠轴加工方式球保持器轴的花键部分中空轴滚珠精密无无无轴承支撑座固定侧的推荐方式轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球无无双螺帽右螺纹，左螺纹，左右螺纹无轴方向刚性。。。

An improvement on the die casting technology of aluminium hub includes drilling hole at the position of die, where the function of die is not affected, for preventing gas from coming into molten aluminium, mounting safety valve to the exhaust opening of die casting case for keeping proper pressure to save electricity and shorten die casting time, and increasing the water-flowing area of cooling disk or ring for higher cooling effect.

一在不影响模具本身功能部位钻孔增加排气通道，解决了压铸过程中产生的气体进入铝水问题。可使铝轮减少气孔。在压铸机箱体排气口部位，安装安全阀，能使压铸机箱体内保持适当的压力，工作时少进气、少排气，起到节电不堵浇口，缩短压铸时间，提高产量。冷却盘、冷却环改进后，增加了过水面积，提高了冷却效果。

The specific discussion of the core oscillation circuit design process, Integration of the 555 timer gave a detailed analysis.

常见的耐压测试仪往往价格昂贵不易携带，因此我们设计了简单便携式耐压测试仪来测试半导体器件的耐压值，介绍了耐压测试仪的电路组成及原理，具体讨论了其核心部分振荡电路的设计过程，对集成定时器555做了详细的分析。

Minimum holding pressure: based on the correct switch point, the pressurewhen the parts start to be empty .

最低保压压力：在准确的转压点基础上，给予一定的保压压力，当产品刚出现充模不足时的保压压力。

Minimum holding pressure: based on the correct switch point, the pressurewhen the parts start to be empty .

最低保压压力：在精确的转压点基础上，给予一定的保压压力，当产品刚呈现充模不足时的保压压力。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。