查询词典 coordinates

Results show that the model is robust to local minima and the location of origin of the polar coordinates.

结果表明，所提出的算法对极坐标中极点的位置不是很敏感。

With this information in hand, we can now calculate 3D coordinates in view space.

有这个信息在手，我们就可以计算视图中的三维坐标。

I think they're coordinates, chief.

我想是座标，老板

The screen coordinates of space a...

屏幕坐标系的变化以及空间坐标随时间的变化。

By the natural and harmonious relationship between differential forms and differential equations and between differential forms and vector analysis, we discuss the properties, which are covariant under the transformation of coordinates in the framework of differential forms, of particle motion in a central force field .

通过微分形式与微分方程和向量分析之间存在的自然而协调的关系，在微分形式框架下讨论了质点在有心力场中运动的特性并得出在坐标变换下其均是协变的

The origin、 development and present state of the container ship2. The deformation characters and collapse mode of the container ship3. The basic theory of thin-walled structural mechanics: The bending of the thin-walled beam; The unconstrained torsion of the thin-walled member bar; The constrained torsion of the thin-walled member bar with opening; The constrained of the thin-walled member bar with closed port.4. The calculation of the warp stress in the container ship based on the thin-walled structural mechanics theoryModeling of the hull ladder calculation based on referred mechanics theories of thin-walled member bar, calculation of crankle character of the each section, such as sectional coordinates、 Free twist shear flow、 secondary shear flow、 bend shear flow and so on.

本文主要包括下述六个方面的内容： 1 集装箱船的起源、发展和现状 2 集装箱船变形特征和破坏形式 3 薄壁结构力学的基本理论◇薄壁梁的弯曲；◇薄壁杆件的自由扭转；◇开口薄壁杆件的约束扭转；◇闭口薄壁杆件的约束扭转 4 利用薄壁结构力学理论计算集装箱船的翘曲应力建立船体阶梯计算模型，利用薄壁杆件力学中相关理论，求解各断面单元的弯扭特性，包括：扇性坐标、自由扭转剪流、二次剪流、弯曲剪流等。

This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题；为处理一些特殊的拓扑关系情况，提高扫描线算法的效率，探讨了包络矩形粗滤、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法；同时还设计了一种新的节点微小圆求交的算法，可应用于图斑与线状地物细分拓扑关系及地类面积的计算；（5）本文设计了实验系统，包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能，以及时空拓扑关系和变化语义分析等原型，验证了拓扑关系表达模型和计算方法的可行性和实用性。

All the local 3D world coordinates of the control points falling on two light stripe planes can be readily obtained by the invariance of the cross ratio.

利用构建的分别位于两个光平面上标定特征点，可以实现工作状态的十字结构光传感器参数的优化估计。

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。

Then we derived the expression of electromagnetic force in the electromagnetic crystallizer in the cylindrical coordinates.

进而推导出在柱坐标系中，电磁结晶器内电磁力的表达式。

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％。