查询词典 over a great distance

He has been active in describing and interpreting distance education since 1965 for purely academic reasons, first at the Educational Centre inBerlin, then at the German Institute for Distance Education Research and then as Professor of Didactics in Berlin.

自1965年起，彼得斯教授先后在柏林教育中心、德国远程教育研究所工作，1975年至1985年，在德国哈根远程教育大学担任首任副校长，在此之后，他专门从事远程教育研究工作。

The features of this dissertation are lie in: a The concept of"Influence Distance"was presented to quantitatively express"corner effect", systematicly studied on the influence of all factors on"influence distance". It could provide reference to angle designing from the view of heat treatment; b Deeply studied on the influence of shape factor to carbon concentration field. It could provide reference to gear designing from the view of heat treatment; c New model was set up to describe the two-dimensional concentration field of carbide dispersion carburizing. The shortcomings of"effective diffusion constant method"and"equilibrium constant method"were overcome in this model.

本文的特色在于：①提出了用"尖角影响距离"定量描述"尖角效应"的方法，并系统研究了各种因素对"尖角影响距离"的影响规律，从热处理角度为工件尖角部位的设计提供依据；②首次深入研究了齿轮的各种形状因素对浓度场的影响，从热处理角度为齿轮设计提供依据；③建立了能够更有效地模拟过饱和渗碳浓度场的数学模型，该模型克服了"有效扩散系数法"及"平衡常数法"的不足，与"最小自由能法"可互为补充。

Distance and dihedral angle constraints are used in distance-geometry and molecular dynamics computations to calculate and refine these structures.

他们将距离和二面角的约束效应运用在距离几何学和分子动力学的计算中使其对分子结构的测定更为精确。

When the consistency is checked, the "distance diagram"is employed. It is concluded that the axioms of a description satisfies the consistency iff there are no negative directed cycles in the distance diagram.

在验证ISITL描述的一致性时采用"距离矢量图"，并认为一个ISITL描述满足一致性当且仅当其距离矢量图上不存在负矢量和的有向回路。

The forward kinematics is analyzed by choosing one of the mechanisms which have one, two,three or zero angle constraint.Wherein,3-CCC is a new parallel mechanism which has three angle constraints and three distance constraints, Calay\'s formular and direction cosine matrix are used to describe the rotation matrix respectively.By setting Dixon\'s and Sylvester\'s resultant with the three angle constraint equations respectively and using parameters replacement to deal with the distance constraint equations,the 64 order input-output equation of the forward kinematics is obtained under both of the methods.Numerical example confirms these theretical results and the motion simulation is shown in VC++ by integrating OpenGL.

3对高小山提出的广义并联机构进行了研究，以其中具有角度约束的并联机构进行了分析，选取具有一个、两个、三个和零个角度约束类型中各一个机构进行了运动学正解求解，其中3-CCC是一种全部由圆柱副构成的具有三个线线角度和三个距离约束的新型并联机构，文中分别用Calay公式和方向余弦两种旋转矩阵建模方法对其位置正解进行了分析，通过对三个角度约束方程分别构造Dixon结式和Sylvester结式，以及对三个距离约束方程进行变量代换分别导出了位置正解输入输(来源：4040ABC论文网www.abclunwen.com)出方程，得出64组位置正解，并使用数值算例验证了其全部根。

Second, the so-called thermal expansion will not reduce the disk head and the distance, as head of the aerodynamic principles of flight, under normal circumstances and always maintain a certain distance from the disc.

二、所谓的热膨胀，不会拉近盘体和磁头的距离，因为磁头的飞行是空气动力学原理，在正常情况下始终和盘片保持一定距离。

The distance between two colors is defined as the Euclidean distance between two three-dimensional points.

两个颜色之间的距离欧几里德距离定义为两个三维点。

The increase of distance in circle neighborhood will decrease the model precision, in the mean while the increase of distance in rectangle neighborhood will increase the precision first then decrease.

环状邻域距离的增大会导致模拟精度的降低，面状邻域距离的增大则导致模拟精度先增后降。不同土地类型对邻域距离变化的敏感程度和反应皆不相同。

Inverse Distance Weighted method is sensitive to the distance and circle distributions are found around sampling point. IDW is an accurate interpolation method in case of the field information diffused from some center points.

距离反比法插值对距离比较敏感，出现很多以采样点为中心的圆形分布，在以点为中心呈扩散状分布的农田信息，采用距离反比法具有较好的插值效果。

And for some events, the distance between events inside and outside the room will be less than the distance between events inside.

对一些事态来说，在屋内事态和屋外事态之间的距离小于屋内事态之间的距离。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。