弯

This paper delivered the relationships of uniaxial tensile and compressive stress with strain and bending properties,and felt－bending strength of cement mortar with polyvinyl acetate.

研究掺聚醋酸乙烯水泥砂浆的轴拉和轴压应力—应变关系、抗弯性能以及长期粘结抗弯强度。

Test results show that, with the addition of polyvinyl acetate, the compressive strength and compressive modulus of mortar decrease distinctly, but the ultimate strain increases significantly. The uniaxial tensile strength and bending strength increase a little, but the tensile peak-strain and the ratio of tensile-compressive and bending-compressive increase remarkably.

试验结果表明，随着聚醋酸乙烯的掺入，砂浆的轴压强度和弹性模量显著下降，但极限应变却明显增大；砂浆的轴拉强度和抗弯强度均略有提高，而极限应变、拉压强度比和弯压强度比则显著增加。

Also the response amplitude will be changed with the initial conditions due to the nonlinear properties of the cables.Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco-elastic dampers in cable-stayed bridges is investigated by joining the center difference method and the state space strategy. Both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. The space nonlinear vibration equations of the cable-damper system are derived, and anew hybrid method for solving the cable-damper system is presented by combing the Newmark method and Pseudo-force technology. According to the known properties of the cable-damper system, the nonlinear transient responses are analyzed under all kinds of excitations. Based on the transient response, the control effectiveness of the visco-elastic dampers is further demonstrated.

综合考虑了拉索抗弯刚度、垂度的影响，研究了粘弹性阻尼器对斜拉桥拉索的空间振动控制，联合中心差分方法及状态空间法，得出了拉索面内、外振动各阶模态可能达到的最大阻尼比及相应的最优阻尼器系数，并对斜拉桥拉索的阻尼器设计提出了参考建议：考虑拉索抗弯刚度、垂度及几何非线性，导出了索-阻尼器系统的空间振动非线性方程组，结合Newmark方法及伪力(Pseudo-Force)方法，创新地提出了求解非线性方程组的杂交方法，根据拉索-阻尼器系统的阻尼特性，在各种荷载作用下，对索-阻尼器系统的非线性瞬态振动响应进行了研究，从系统响应的角度更加直接地验证了阻尼器的控制效果。

It is essential to decide the reasonable heating parameters for ship hull plate forming system by pure line heating.

对于完全采用水火弯板成形船体板的情况，根据要加工形成的角变形量给出合适的工艺参数是水火弯板成形系统必须解决的问题。

The purpose of the operation is to correct rachis side turn, increase the stability of rachis.

概要： 特发性脊柱侧弯是指不明原因的脊柱偏离正中线，形成向左或向右的不同程度的弯曲畸形，多发于青少年，影响患者的生长发育和体形，胸段侧弯可致心脏移位、心肺功能不全、甚至截瘫[1]，造成心理生理上的损害。

Is noe kind of non- reclaimable fishing tool which is normally used for the fishing purpose from the outside of the pipe string,iscan be used to fish flat-type fsh head of the pipe string.

弯鱼头打捞筒是从管柱外部进行打捞的一种，不可退式工具可打捞弯扁形鱼头的落井管柱，其特点是在不用修整鱼顶的情况下直接进行打捞。

With respect of slab lateral cambering of hot rolling sizing press,the analysis shows it is the temperature difference on both sides of the slab that causes different resistance in metal's plastic deformation,which makes metal deform at different speeds.

针对热轧SP定宽轧制的板形侧弯问题，经分析指出：板坯两侧温差造成金属塑性变形抗力大小不相等，从而使金属变形速度不同，变形速度快则相同时间内移动的金属量多，最终使变形快的一侧向变形慢的一侧弯曲是板形侧弯的形成机理。

The experimetal results show that the flexural moment of the sample in the prebending direction is far bigger than that in the vertical direction to pre-bending and the spherical shape can be conquered during pre-loading laser peening forming to a great extent.

试验结果表明，在弹性预加载下，板料在弹性预弯方向获得的弯矩要比与弹性预弯垂直方向上的弯矩大得多，弹性预加载下激光喷丸成形可以有效地克服自由状态下激光喷丸件呈球形现象，激光喷丸件的曲率是自由状态下激光喷丸成形曲率的2～3倍；在相同曲率下，弹性预加载下激光喷丸成形件的表面粗糙度比自由状态下激光喷丸成形件的表面粗糙度要低1～2等级，因此弹性预加载下激光喷丸成形要优于自由状态下的激光喷丸成形。

Note that not all curved swords are scimitars and that while eastern, the scimitar started playing a sometimes significant role in Middle Eastern warfare more than two millennia before the advent of Islam in the form of the khopesh.

注意这里并不是说所有具有弯曲刀刃的刀剑都是弯刀，在东方，弯刀在伊斯兰教诞生2000前的中东战事中有时候就起到了一种至关重要的作用。

The large curvature of the Earth appearing in the visor reflection is not the true curvature of our spherical Earth, but rather an artifact of the curve of the space helmet.

头盔反射看到的巨大的地球弯曲度并不是我们球形地球真正的弯曲度，而恰恰反映的是太空中头盔弯曲度。

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。