大轴

But these methods limited by the expense of computing fundamental matrices and trifocal tensors or of the nonlinear optimization involved in computing epipolar tangencies. Through the studies of the invariants of the single axis motions, computational theories have been developed in this thesis to provide practical solutions for the problem of structure and motion from fitting the corresponding points in the whole sequence to its conic locus or conics for short.

在最近的研究中，一些研究人员利用视觉几何的方法从非定标的图象中对单轴旋转运动进行分析，提出了利用基本矩阵和三焦距张量求解单轴旋转运动中的关键参数——旋转角度的算法，但是该算法需要计算一系列相邻2图象的基本矩阵和一系列相邻3图象的三焦距张量，由于每个基本矩阵的自由度为7，每个三焦距张量的自由度为18，导致算法参数数量非常之大。

Compared with dissymmetrical engines, the results show that the contrapositive cam engine can balance the axial force with larger torque output and lower loads on shafting bearings.

研究结果表明，虽然对置后发动机轴向长度有所增加，但主轴轴向力能完全平衡，主轴产生转矩大，轴承负荷小，可提高功率。

The simulation floating zone modelwith zero temperature gradient in the middle of the hot rod is proposed to simulate thehalf part of the full floating zone convection,since the temperature gradient in the middleof a full floating zone approaches zero.

根据加热方式的不同，可以将半浮区液桥分为通常半浮区液桥模型、模拟半浮区模型以及改型半浮区模型。通常半浮区液桥模型，液桥热端材料一般选择为金属材料，使得热端温度分布均匀。液桥产生热毛细对流时，在液桥热端内侧存在较大的轴向温度梯度。而在全浮区热毛细对流中，浮区中间的轴向温度梯度在对称条件下应该接近于零。

This article mainly elaborated the countershaft group bull wheel and the countershaft module processing technological process formulation, rolls the tooth working process the unit clamp design and the force top horizontal jade piece tooth's unit clamp design.

本文主要论述了副轴组大轮和副轴组件加工工艺规程制定，滚齿加工工序的专用夹具设计及强力珩齿的专用夹具设计。

Crown gear coupling is a kind of small-scale gear coupling developed in the resent 30 years, which can reliably work with inclination of axes.

鼓形齿联轴器是近30 年来为满足大倾角、变倾角、小尺寸和高可靠性等技术要求发展起来一种齿轮联轴器。

However, the greater the displacement of the input shaft axis from the crown wheel axis, the lower the mechanical efficiency.

然而，更大的车轮从冠轴输入轴轴线位移，机械效率降低。

Based on characteristic of chinese handwritten signature, some programs are developed to acquire the dynamic handwritten signature data from WACOM Tablet and to calculate velocities from acquired dynamic data. Based on statistics theory, instantaneous velocity and average X velocity and average Y velocity and time when the first maximal velocity arriving during on-line handwritten signa...

根据汉字手写签名的特点，编程从手写板获取签名的动态数据，编写了提取手写签名多种速度特征值的程序，在统计的基础上，对手写签名过程中的瞬时速度、X轴向平均速度和Y轴向平均速度、最大速度出现的位置、极大速度首次出现的位置等特征量的稳定性进行了实验研究，得出了一些有用的结论。

In this paper analysed is the effect of deviated axial pressure, complicated state of stress and effective area of cross section on parameters.

本文分析偏轴压力，复杂性的应力条件以及有效的剪切面积对参数的影响，得出 C，Φ的偏差趋势，指出直剪试验参数误差过大，建议尽量采用三轴仪进行强度试验。

The stability of the n director around the grooves was studied. In one-constant model for each director, the rude condition is that the elastic constant of the n director is the maximum.

研究了双轴向列相液晶在表面沟槽上锚定的稳定性问题；稳定性条件在双轴向列相单一弹性常数近似下为n指向矢的弹性常数最大。

Mechanical seal supplied with high pressure sealing water is recommended when the slurry pump is installed in series (two stages and above tow stages).and the expeller seal combined with packing seal is used when the pum is installed in single-stage.

对于多级串联采用填料加副叶轮组合式密封，二级和二级以上轴封水最低压力一般为：Pn=其中n≥2；Hi为等i级泵扬程；Hn为第n级泵扬程。对采用机械密封，各级泵的轴封水压力一般要求比泵出水口压力大0.1MPa。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。