Velocity distribution of oil - water stratified laminar flow is discussed theoretically with the shear stress ratio model,the water phase velocity is treated with the parabolic profile and the shear-parabolic profile.
利用剪切力比模型,进一步讨论了油水两相分层流层流流动的速度分布规律,将水相流速假设为抛物线形式分布与实验结果有较大偏差,将水相分为拖曳和返流两段更接近实际情况,模型所得水相计算结果更接近实验数据。
The specific grinding energy is divided into the specific cutting energy and the specific friction energy.
从比切削能和比摩擦能的大小变化与磨削参数的关系出发,研究了磨削加工中的尺寸效应问题,结果认为:比切削能的尺寸效应是金属剪切流动应力的尺寸效应和磨粒顶端钝圆影响的综合作用结果;当磨削深度或工件进给速度减小时,平均未变形切屑厚度减小,金属材料的剪应变效应和剪应变率效应增强,而热软化效应减弱,从而金属材料的剪切流动应力增大;当未变形切屑厚度减小时,磨粒顶端钝圆的影响增大;比摩擦能的尺寸效应是由于工件和砂轮的实际接触面积与磨削深度之间存在非线性关系及工件和砂轮间的摩擦因数的速度效应造成的;当工件进给速度减小时,工件与砂轮磨损平面间的摩擦因数增大。
The deformation characteristics of non free cutting (NFC) are experimentally studied with the chip cross section geometry, the deformation configuration and the cutting ratio.
通过对切屑截面几何、变形状态及切削比的实验分析，研究了非自由切削的变形特征。
The method calculating cutting force by means of cutting ratio in two dimensional cutting is introduced.
介绍在二维切削中，利用切削比批算切削力的方法。
All your strength is in your union, All your danger is in discord.
一切力量在团结中,一切危险在纠纷中.
Influences of Sawing Parameters on Forces and Energy in Wire Sawing of Granite
串珠绳锯切花岗石过程中锯切参数对锯切力和能耗的影响
The torque of the couple is intimately associated with a couple.
力偶矩与力偶密切相关。
circumferential force
切线力, (沿着圆周作用的)切向力
STUDY ON CUTTING FORCE IN RECTANGULAR GROOVE CUTTING AND SIDE DEFORMATION OF CHIP
矩形槽切削的切削力及切屑横向变形的研究
Study on Cutting Force and Quality of the Sliced Veneer Used in Laminated Veneer Lumber;
LVL用刨切单板切削力与质量研究
Cutting Force Modeling in Turning Based on Cutting Parameters in Face Cutting;
基于切削参数的端面加工切削力模型
magnetohydrodynamic shear heating
磁流体动力剪切加热
All our efforts were of no effect.
我们一切努力都无用。
bit's directional cutting ability
钻头的定向切削能力
He had the ability to push aside all difficulties.
他有能力排除一切困难。
All his efforts were thrown away.
他的一切努力都自费了。
maximum shear stress yield criterion
最大剪切应力屈服条件
All his efforts proved of little avail.
他的一切努力收效甚微。
A fluid cannot withstand a shear.
流体不能承受切应力。
Mrs Thatcher was in sparkling form.
撒切尔夫人精力正旺。
All his efforts avail to nothing.
他的一切努力都归无用。
Technology of baton handover in TD-SCDMA systems
TD-SCDMA系统接力切换技术