反向弯曲

Meticulous repair ; cold frame ; unsymmetry section steel ; reversely curve ; equilibrium weight

精整；冷床；非对称型钢；反向弯曲；平衡重

The anatomic variations included 39 deviation of nasal septum,28 paradoxical curvature of the middle turbinate ,11 pneumatized middle turbinate , 16 uncinate hyperplasia ,9 deviation of uncinate, 5 pneumatized uncinate ,15 large ethmoidal bulla and 9 Haller cell.

所有病例均显示钩突、筛窦漏、半月裂、筛泡及中鼻甲等的结构，鼻中隔偏曲39例，中鼻甲反向弯曲28例、中鼻甲气化11例，钩突肥大16例，钩突明显偏移9例，钩突气化5例，筛泡过度气化15例， Haller 气房6例。

The amplitude of prestrain and reversal strain both showed remarkable influence on BE and the elastic-plastic strain i...

弯曲加载方式引起试样横截面上弹、塑性应变分布的不均匀性，在反向应变时产生的宏观残余应力对BE也有不可忽视的影响。

The same basic design principle is used in today's Olympic archery competitions, but the recurve has been refined, with fiberglass, carbon graphite and aluminum now being the materials of choice.

但反向弯曲得到更进一步的改进，可以选用的材料有玻璃纤维，碳素石墨和铅。

It can be concluded that, when the jet is injected at positive angles, the initial section of the jet increases and the region affected by the jet decreases in the vertical direction; moreover, the circumfluence toward the jet exit becomes more obvious, and the separation events in the lee of the jet weaken. When the jet is injected at negative injection angles, it disarranges the flow upstream and the curvature of jet trajectories varies smartly along the flow direction.

结果表明：射流正向倾斜入射时，射流起始段增加，在垂直方向对主流场的影响区域减小，射流喷口上游位置处的&孔吸流动&更为明显，射流出口下游背风侧的分离现象逐渐减弱；射流反向倾斜入射，对上游流场的扰动增加，射流在弯曲段内曲率变化大。

The deformation of unsymmetry section steel after cooling is mainly eliminated by reversely curring it on line,ensuring the achievement of automation of meticulous repair.

文摘：介绍了一种新型冷床，通过在线对非对称型钢进行反向弯曲，基本上消除了非对称型钢冷却后的变形，保证了精整工序自动化的实现。

The deformation of unsymmetry section steel after cooling is mainly eliminated by reversely curring it on line,ensuring the achievement of automation of meticulous repair.

介绍了一种新型冷床，通过在线对非对称型钢进行反向弯曲，基本上消除了非对称型钢冷却后的变形，保证了精整工序自动化的实现。

Large dancer arm keeps material from being reverse-bent during the feed process Speed and tube tension are auto-adjusted by computer.

大型松紧调节臂不断从进料加工过程中反向弯曲的材料速度与管张力通过计算机自动调整。

It is shown that the contact interaction enables bottom drillstring to whirl backward, and then an alternate bending stress with higher frequency is produced. So the drillstring fatigue failure could be accelerated. At the same time, a quite strong wallop force of high frequency is produced on the contacting point, and the contacting zone is next to the screw coupling of drill collars. It will easily result in the failure of screw couplings. The research results provide theoretical basis for the prevention of drillstring failure.

研究表明，下部钻柱与井壁的碰摩作用使下部钻柱反向涡动，产生高频的交变弯曲应力，会加速下部钻柱疲劳破坏；下部钻柱与井壁接触点处存在较大的高频冲击力，并且接触区域靠近钻铤螺纹联结处，更容易诱发螺纹联结处失效，该研究成果可为预防钻柱失效提供理论依据。

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。