扭转

A mechanic model of a thin tube p asted with an actuator, is presented, the mixed deformations of compr ession and torsion of the tube are analyzed and the relation between the angle o f twist of the tube and temperature in a temperature cycle is given.

建立了粘有SMA丝应变驱动器的薄壁圆管的力学模型，分析了一个温度循环中，薄壁圆管受SMA驱动发生的压扭复合变形，给出了薄壁圆管扭转角与激励温度之间的关系。

The study indicates that the center wavelength of FBG's reflected spectrum on the two polarization directions shift, and the reflectivity decreased with the increase of the twist angle. The longer wavelength produces"red shift". The shorter wavelength produces"blue shift". And the wavelength shift is basically same.

研究表明，随着扭转角度的增加，两个偏振方向的光栅反射谱中心波长发生移动且反射率降低，长波长的产生"红移"，短波长的产生"蓝移"，移动的波长量基本相同。

A rotor structure for a rotating wing aircraft having substantially rigid rotor head means and rotor blades or wing means arranged in at least one pair, comprising blade angle bearing means (10, 12, 14, 16) for each rotor blade means, tension bar means (6,8) operatively interconnecting the rotor blade means of a pair which blade means are arranged diametrically opposite each other, said tension bar means having a high bending resistance, whereby transmission of bending moments from the rotor blades to the rotor head means is substantially prevented, each of said blade angle bearing means comprising a structure angularly movable in the wing flap direction and in the wing lead-lag direction, at least one of said blade angle bearing means of a pair comprising means permitting an axial motion of the respective tension bar means supported in said blade angle bearing means, and wherein said blade angle bearing means (10, 12, 14, 16) operatively support said tension bar means (6, 8) on said rotor head means (4) for pitch angle rotation of said tension bar means relative to said rotor head means (4), said rotor structure further comprising means (24) securing said rotor blade means (18) to said tension bar means (6, 8) in a manner rigid against rotation of the blade means about the longitudinal blade axis whereby the securing means prevent flapping, drag and lagging movements of the tension bar means, said tension bar means being constructed as torsion bars which are elastic relative to torsion about said longitudinal blade axis.

1转子结构为旋转翼飞机，有大幅刚性转子头部的手段和转子叶片或机翼的手段安排中至少有一对，组成的叶片角度轴承手段（ 10 ， 12 ， 14 ， 16 ）为每个转子叶片的手段，拉杆手段（ 6，8 ）手术互连转子叶片的手段，其中一对刀片的手段都是安排截然相反的对方说，拉杆手段，有一个高弯曲阻力，即传输弯矩从转子叶片向转子头的意思是，大幅防患于未然，每个叶片角度说，轴承的手段组成的一个结构angularly动产在机翼上皮瓣的方向和在机翼导致滞后的方向，至少有一个叶片角度说，轴承是指一对组成的手段，允许轴向的议案，分别紧张酒吧手段，支持在叶片角度说，轴承的手段，其中，叶片角度说，轴承的手段（ 10 ， 12 ， 14 ， 16 ）手术的支持表示拉杆的手段（ 6 ， 8 ）就表示，转子头部的手段（ 4 ）为俯仰角轮换说拉杆手段相对说，转子头部的手段（ 4 ）表示，转子结构进一步组成的手段，（ 24 ）说，确保转子叶片的手段（ 18 ）表示，拉杆手段（ 6 ， 8 ）在一个僵化的方式对旋转的叶片即是说，约纵向叶片轴，即确保手段防止扑，拖曳和落后变动的紧张局势，酒吧的手段，说拉杆手段，正在建造的，作为扭杆这是弹性相对扭转约说，纵向叶片轴。

The stress concentration factor and stress intensity factor of annularly notched shaft subjected to torsional load were given.

给出扭转载荷下环形缺口的应力集中系数和环形裂纹的应力强度因子。

Turning the moral and ethics paradigm of anthropocentric to ecocentrism more reasonable is the legislation of environmental criminal law'ought to be choosed.

扭转以往的人类中心主义道德伦理范式进而转向更为科学合理的生态中心主义是环境刑事立法的应然选择。

There are no skin care products that have antiaging qualities that will reverse the sands of time.

有没有护肤品，有抗衰老的素质，扭转时间的沙漏。

The dynamic elasto-plastic torsion problem is applied widely in physics, mechanics and engine.

动态弹塑性扭转问题在物理、力学及工程中有着广泛的应用。

Sometimes, however, the ability of bars to deform appreciably in torsion is put to good use

但是，有时要利用杆件在扭转时具有可观变形的能力。

On the arc of history and bend it once more toward the hope of a better day.

他们的双手扭转了历史，让历史转向充满希望的新的一天。

Interpreting the Kvadrat brand architecturally, we've taken a very unusual plot and turned it around.

解读建筑Kvadrat品牌，我们已经采取了非常不同寻常的阴谋，并扭转了局面。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。