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旋转地

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The physical model of polarizing beam coupling and splitting system using altazimuth coude telescope is built up based on Mueller matrix and Stokes vector. The phenomena of the decreasing of the receiving efficiency are successfully explained by this model. Three dynamic phase compensation solutions are proposed: 1 Two quarter-wave plates are rotated to compensate the phase of the laser.

针对这个问题,建立了地平式折轴望远镜的共孔径偏振耦合分光模型,用Stokes矢量和Mueller矩阵分析了在望远镜旋转过程中激光偏振态的变化,数值模拟计算了望远镜处于不同方位角和天顶角时的偏振耦合分光效率,解释了实验中观察到的望远镜旋转导致偏振耦合分光效率退化的现象。

This method can reflect the changes of mechanical angular acceleration in various rotating system, and it is suitable for the fields where the mechanical angular acceleration changes so quickly.

它可以直观地反映出各种旋转系统随时间变化的机械角加速度的变化情况,可应用于旋转系统机械角加速度快速变化的测量场合。

X-ray fluoroscopy in the close reduction and interlocking intramedullary nailing for treating femoral shaft fracture could objectively identify the rotational degree of distal fracture. It is more accurate to adjust the rotational angle of injured femur according to the anteversion angle of the intact side.

股骨干骨折闭合复位内固定术中使用X射线透视设备可以客观地明确骨折远端的旋转角度,而以健侧股骨前倾角为标准来调整伤侧股骨的旋转对位更为准确。

During autorotation, they could simply rotate shut to close off air-flow through the engine and greatly reduce cold drag.

在自动旋转,他们可以简单地旋转,通过关闭,以关闭发动机的空气流动,大大降低了冷阻力。

The results were as follows.(1) In the backward handspring, the trajectory of CM and horizontal velocity of CM in junior-high and college gymnasts were lower and higher than those of senior-high gymnast, so the vertical velocity is better when they perform tucked backward somersault. College gymnast has higher vertical velocity than junior-high and senior-high gymnasts in take-off moment of backward handspring phase.(2) Senior-high and college gymnasts have more elbow and shoulder angle in take-off moment of backward handspring and tucked backward somersault phase. Therefore, angle of both arm is bigger for performing in hand push away phase in the backward handspring, and increased the reaction force with body in the tucked backward handspring.(3) College gymnast has large knee flexions in hand support and push away moment in the backward handspring, it would increase rotation radius and better moments of inertia in the backward handspring.

结果显示:在后手翻阶段中,较低的重心轨迹和较高的水平速,有於后续空翻的垂直速;大专选手在后手翻阶段起跳瞬间有较高的垂直速;高中及大专选手在后手翻起跳脚地瞬间和团身后空翻起跳脚地瞬间时,肘、肩关节角皆大於国中选手,使其在后手翻起跳地瞬间时,双臂的伸展於后手翻的手推地面的动作,而团身后空翻起跳脚地时,双臂向上摆於身体向上伸展方向的掌握,并使重心有一定的腾空高;大专选手在后手翻阶段的手著地瞬间和手地瞬间的膝关节角较大於高中和国中选手,使其可增加身体的旋转半径,并能获得较佳的下摆动能,而膝关节角小则形成屈膝的动作,导致重心水平速低,减少下摆动能和影响整体动作的节奏和韵。

By adjusting the weight, different component in the volume can be filtered out. According to the Source-attenuation model, Lambert's cosine law of diffuse reflection and Phong specular-reflection model, two equations used to calculate the intensity of every voxel in the volume data are obtained.

由源-衰减模型,朗伯漫反射余弦定律和Phong镜面反射模型,推导出了计算数据场中每一点明暗度的计算公式,通过旋转光源和视点,来自不同观察方向的感兴趣结构的体绘图能被满意地生成,从而避免了对内存中整个体数据的旋转。

5First direction with said motor and rotated in a second direction independently of said motor and gear train; anda governor for inhibiting rotation of said spool gear when it is independent of said motor and gear train, said governor including a governor gear mounted on said frame independently of said motor and gear train, said governor gear being meshed with said spool gear to rotate in unison therewith, and said governor gear 6 including means for inhibiting its rate of rotation in the form of a spring for fractionally engaging said governor gear with a friction surface.

第─个方向与电机和说,在独立旳第二个方向旋转说,电动机和齿轮列车;和抑制旋转的齿轮轴省长说,当它说,独立的电机和齿轮火车,省长说,包括一名省长说齿轮安装在框架独立说,电机和齿轮传动,齿轮说,州长说,目前啮合齿轮轴旋转异口同声地订定条文,并表示州长齿轮包括指在一个弹簧的形式抑制它的自转速率为小幅省长说,从事齿轮的摩擦表面。2。

First direction with said motor and rotated in a second direction independently of said motor and gear train; and a governor for inhibiting rotation of said spool gear when it is independent of said motor and gear train, said governor including a governor gear mounted on said frame independently of said motor and gear train, said governor gear being meshed with said spool gear to rotate in unison therewith, and said governor gear 6 including means for inhibiting its rate of rotation in the form of a spring for fractionally engaging said governor gear with a friction surface.

登录后回答可以获得经验值奖励,并可以查看和管理所有的回答。登录|第一个方向与电机和说,在独立的第二个方向旋转说,电动机和齿轮列车;和抑制旋转的齿轮轴省长说,当它说,独立的电机和齿轮火车,省长说,包括一名省长说齿轮安装在框架独立说,电机和齿轮传动,齿轮说,州长说,目前啮合齿轮轴旋转异口同声地订定条文,并表示州长齿轮包括指在一个弹簧的形式抑制它的自转速率为小幅省长说,从事齿轮的摩擦表面。2。

One, with a fan and some bits of paper, performed the graceful trick of the butterflies and the flowers; another traced in the air, with the odorous smoke of his pipe, a series of blue words, which composed a compliment to the audience; while a third juggled with some lighted candles, which he extinguished successively as they passed his lips, and relit again without interrupting for an instant his juggling.

还有一个耍弹簧地陀螺的演员,他使那些地陀螺滴溜溜转起来配合得极其巧妙,看了简直叫人难以置信,这些嗡嗡作响的陀螺在他的操纵下,活象是一些旋转不停的有生命的小动物,它们能在烟斗杆上,军刀刀口上,以及在那些拉在舞台上的头发一样细的钢丝上旋转着跑个不停,它们能围着几个大水晶瓶打圈转,它们能爬竹梯,能四面八方到处跑,同时发出各种不同的响声。

Rotary valve capacity is about the same size straight trip valve 2 ~ 3 times, spin valve can be used to improve the blending amount of the feed pipe without changing the size, can greatly reduce costs, for this reason, part of the rotary valve has been designed to replace the cut-off valve flange face flange form of connectivity and is equipped with connecting bolts, such valves even better than the cut-off valve replaced them cheaper.

旋转阀的容量大约是相同尺寸的直行程阀的2~3倍,旋转阀能够用于提高掺合量而不改变进料管线的大小,可以极大地降低成本,基于这个原因,部分旋转阀已经设计成可代替截止阀的法兰面对法兰面的连接形式,并配有连接螺栓,这类阀甚至比他们所替代的截止阀还便宜。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。