剪下

A circle shear device for cutting holes in sheet metal as in claim 1 wherein: a said upper center shaft includes a first platform member disposed rotatably connected adjacent a lower end of said upper center shaft for supporting a top surface of said provided metal sheet; b said lower center shaft includes a second platform member disposed rotatably connected adjacent an upper end of said lower center shaft for supporting a bottom surface of said provided metal sheet; and c said upper and lower support platform members engaging top and bottom surfaces of said provided metal sheet to prevent metal sheet movement when said cutter wheels are brought into shearing contact with said provided metal sheet.

一个圈剪切装置切割孔金属板材作为权利要求1 ，其中： A ）表示，上中心轴，包括第一次会员平台弃置rotatably连接相邻较低月底上说，中心轴为支持一个顶面的表示，提供金属板材； B ）表示，较低的中心轴，包括第二个平台会员弃置rotatably连接相邻上月底表示，较低的中心轴为支持一个底部表面的说，提供金属板材； C ）表示，上，下支撑平台成员从事顶部和底部表面的表示，提供金属板，以防止金属板运动时说，刀车轮被带入剪切接触说，提供金属板材。

The shaping course of Fine blanking is very complex. Material forms a local plastic cutting area between punch and bottom die, and brings violent plastic flow under the effect of press stress. The grad of stress and strain is great, and it is an unstable transmutation process that came through an elastic distortion, plastic distortion and cut rupture.

精冲成形过程非常复杂，材料在狭窄的凸、凹模间隙附近形成了局部塑性剪切带，在压应力的作用下产生强烈的塑性流动，应力应变梯度很大，是一个经历弹性变形、塑性变形和剪切断裂的非稳态大变形过程。

Study shows that the E-W-trending steep foliation belt is one of the major structural patterns, which is well-preserved in the complex. The large-scaled ETSFB is characterized by well-developed E-W-trending steep-dipping foliations and sub-vertical folds, suggesting pure shearing under the condition of crust contraction.

近年来的研究发现，近东西向陡倾叶理带是该区高级变质杂岩中保存完好的一种主要构造形式，规模巨大，以密集的近东西向陡倾叶理和直立褶皱的发育为特征，反映了地壳挤压收缩环境下的纯剪切变形，其上叠加了深构相右行走滑剪切带。

It is shown that the phase inversion is complete, which means that all water molecules in the system are transformed to be continuous phase at the phase inversion point. The viscosity of the system before the phase inversion point is almost constant independent on stress, which is the characteristics of Newtonian fluid.The systems after the phase inversion point exhibit high viscoelasticity and strong pseudoplasticity at relatively high stress.

结果表明，乳化剂浓度较高时，体系发生完全相反转；体系在相反转点前为W／O结构，其粘度几乎不随剪切应力的改变而改变，表现为牛顿流体行为；体系在相反转点后为O／W结构，具有很高的粘弹性，并且在较高剪切应力下表现为典型的假塑性。

Chained small hollow concrete block masonries were tested under different vertical loads in comparison with 137 common ones . Failure mechanism was analyzed and verified and its shear strength formula obtained .

通过不同正压力下137片连锁式混凝土小型空心砌块砌体和137片普通混凝土小型空心砌块砌体的抗剪试验，分析和验证破坏机理，得出连锁式混凝土小型空心砌块砌体的抗剪承载力计算公式。

At the mid-thoracic and lower thoracic levels, significantly more vertebral rotation occurred under dorsal shear loads than under ventral shear loads.

在胸正中和下胸位置，背侧剪切载荷比胸侧剪切载荷会产生更明显的椎体旋转。

Through above numerical analysis of the TiN coating/substrate system, some typical rules about the fatigue failure are found:(1) the fatigue damage of a coating/substrate system appears first on the interface, then expands along the interface and to the substrate, and finally causes the coatings broken and spalled;(2) under the cyclic loadings of tangential sliding and radial extrusion, the equivalent plastic damage on the interface is mainly generated by the shear stress and the accumulated plastic contributed by the increments of shear stress. Thus the change of the shear stress is the main factor for the contact fatigue damages of coating/substrate system;(3) the frictional coefficient, external loading and coating thickness have some influence on the carrying capacity and contact fatigue life for a coating/substrate system.

通过对TiN涂层／基体系统的数值模拟分析，得到了涂层／基体系统疲劳失效的一些典型规律：(1)、涂层基体的初始损伤首先出现在交界面处，然后沿界面并向基体中扩展，最后导致涂层断裂而发生剥落失效；(2)、在切向滑动和径向挤压循环载荷作用下，交界面处的塑性损伤主要是由剪应力τ产生，塑性累积也是由于△τ的变化引起，说明循环过程中剪应力变化是影响涂层接触疲劳破坏的主要因素；(3)、材料摩擦系数、外界载荷大小以及涂层厚度都对涂层／基体系统的承载能力以及疲劳寿命都有一定影响。

A postbuckling analysis is presented for a shear deformable laminated cylindrical panel of finite length subjected to lateral pressure.

基于Reddy高阶剪切变形理论的Karmam-Donnell型非线性壳体方程，给出复合材料层合剪切圆柱曲板在侧压作用下的后屈曲分析。

Concept and state of the art of design methods of plate——column structure and plate——column and shearwall structure are bri......

基于板-柱结构及板柱-剪力墙结构的概念和设计方法现状，从风载和常遇地震作用下结构的顶点侧移，静力弹塑性分析结果，节点抗震性能以及结构振型分析等几个方面，评价了板-柱结构的抗震性能，并对板柱-剪力墙结构的抗震性能进行了初步探讨。

Both are simplified as an equivalent frame-shear wall structure with multiple link bars.

文中采用简化为等代框架-剪力墙的多连杆计算图式，给出在顶端集中、均布、倒三角分布的水平荷载作用下内力、位移的计算公式；并对十二层以下的板柱-剪力墙结构，编制出内力位移计算用表。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。