位置参数

In fact, OO classes can only express single parameter type classes where the type argument appears exactly once in strictly covariant position.

事实上，OO类只能表达一个参数的type class，而这个类型参数还必须出现在严格的协变位置一次。

A simplified PUMA robot force control model is given in this paper. The stability and rubustness is analysised by computer simulation. The step response of position loop and force loop in external alter mode is tested, and prove that the system posses critical damping ratio.

简化得出了PUMA机器人的力控制模型，利用计算机仿真的方法，分析了系统的稳定性及鲁棒性，给出了最佳参数的选择，测试了在外部修正方式下位置控制环及力控制环的阶跃响应，证明位控环具有临界阻尼的特性，并讨论了参数选择值不同时对系统性能的影响。

Analyse the tooth geometry of Klingelnberg Cyclo-Palloid spiral bevel gear.,according to the relative position and kinematic relation of the cutter heads,virtual crown gear and the processed wheel blank,established the system of coordinates of the gear cutting, dedcuced the tooth face equation of the virtual crown gear, according to relations of the gear cutting and space theory of engagement, deduced the tooth face equation of klingelnberg Cyclo-Palloid spiral bevel gear, and drawing the three-dimensional graphs of the virutal crown gear and Klingelnberg Cyclo-Palloid spiral bevel gear according to the design and setting parameters.

根据铣齿加工中刀盘、摇台和轮坯的相对位置和相对运动关系建立了切齿啮合坐标系，由矢量的旋转推导了产形轮齿面方程；根据空间啮合原理和切齿啮合关系推导了被加工齿轮的齿面方程；由设计参数和铣齿调整参数计算得到齿面离散数据，绘制了产形轮和摆线齿锥齿轮的三维齿形。

On the basis of dual porosity theory,the well test interpretation model which considers the variation of krg versus the volume of liquid is also established and resolved by the implicit method numerically.

摘要通过分析凝析气藏的相图，建立了凝析液饱和度随压力降的变化规律，并回归得出了相应的公式；同时通过对气体压缩因子、黏度随压力、温度的变化，建立了这些参数和无因次压力的关系；在双重介质地层假设的基础上，建立了在试井过程中凝析气相对渗透率随凝析液饱和度变化的凝析气藏试井解释数学模型，采用隐式迭代的方法进行了求解并进行了参数敏感性分析；结果表明：凝析液的饱和度对凝析气藏试井的压力及压力导数曲线有着很大的影响，早期由于凝析液的析出，阻碍了气藏的流动，导致压力及压力导数曲线上升；在凝析液饱和度达到峰值之后，随着凝析液的挥发，凝析气的相对渗透率逐渐恢复，压力及压力导数曲线又回归到正常的径向流位置；由于裂缝和基岩之间的压力差，使得裂缝弹性储容比在测试过程中发生变化，进而影响了压力及压力导数；窜流系数和裂缝弹性储容比的变化决定了窜流段发生的早晚和程度；而基岩中气体黏度的变化使得窜流的发生稍微滞后。

The paper mostly introduced control system of a new-type lab's hot-press which recently was researched and manufactured. It briefly described primary control principles of the press.

人造板现代热压工艺的研究需要高性能的实验热压机，该压机对压板的位置、速度和压力等热压参数的控制精度比生产型热压机的要求高，而且控制参数的调整范围也比生产型热压机大，所以，对控制系统的适应性和调节性要求较高。

The proposed approach is verified by two cantilever beam experiments under ideal boundary conditions and uncertain end conditions, and the approach presented here is suitable for crack identification in engineering even if small frequency measuring errors exist.

对于理想边界条件下的裂纹参数识别，在测量频率存在小误差情况下，该方法仍能给出比较满意的结果，对于非完全固支边界条件下的裂纹参数识别，利用本文方法能得到比Narkis的方法更精确的裂纹位置识别结果。

In addition, according to the given position and attitude parameters, the backward kinematics equation is resolved.

另外，在给定相关的位置和姿态参数的情况下，对各关节运动参数的逆运动学方程进行求解。

Firstly,to abtain the parameters of coupling system,such as the focal length and the position of the lens,computing the Gaussian lens formula,then establishing the rectangular coordinate system and constructing equation and tracing the marginal ray to compute the parameter of the radius of the image beam waist.

首先使用高斯光束的透镜变换公式计算透镜的焦距及放置位置等耦合系统的参数，然后建立直角坐标系并利用耦合系统的参数构建方程，对边缘光线追迹，计算出像方束腰半径值。

This paper presents an algorithm of optimizing the location ofthe parameter controllers in earthquake-excited buildings.

在这里，称这些控制装置为参数控制器。在实际工程中，参数控制器的数量及安装位置是一个十分重要的优化问题，但目前在该方面的研究非常有限。

In VB ListView dynamic loading records this function LoadDataFunc used for data loading, it is a defined function, a parameter is the initial data loading location, and the second parameter is to load data number.

在VB的ListView中动态加载记录这个函数中使用了LoadDataFunc对数据进行加载，它是一个自定义的函数，第一个参数是数据加载的起始位置，第二个参数是要加载数据的数量。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷