horizontal plane

I mean if I am moving on a horizontal plane, to know where I am, dxdy I should know x and y.So dS will be dx dy.

事实上如果我在一个平面上移动，要确定自己的位置的话，需要知道x，y坐标，所以dS就是。

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A horizontal plane divides the body into superior ( upper ) and inferior ( lower ) portions.

水平面将身体分为上 ( 上面 ) 和下 ( 正面 ) 两部分.

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And the emphasis of solving Manhattan distance Steiner minimum spanning tree under horizontal plane degree constraint is on two aspects, to determine the number and location of auxiliary point and degrees of processing.

而解决水平面上度约束下的曼哈顿距离Steiner树的重点在于确定辅助点数目和位置与度约束的处理两方面。

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This paper gives a mathematical model of fire correction for naval gun against the shore targets when the firing positions, observation post, targets and the burst points are not in the same horizontal plane.

给出了发射点、观测所、目标、炸点不在同一水平面内的对岸射击校正量模型，完善了对岸射击校正量的处理。

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The jet wake vortices occurring in the lee side of the jet show an evident three dimensional movement including the spin and stretch in the horizontal plane as well as the torsion in the vertical plane.

背流面射流尾迹涡不仅有水平面内的旋转和拉伸变形，还存在垂直平面内的扭转，表现出明显的三维流动形态。

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The disadvantages in the prior art that a chain can be curled by winding the shaft only in the vertical surface and can not be bent on the horizontal plane is overcome;

克服现有技术中链条只能在垂直面内绕轴卷曲，不能在水平面内折弯的缺陷；

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Application of horizontal plane two-dimensional seepage finite element method in levee

水平二向渗流有限元法在堤防中的应用

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It makes the Tangent Sphere Method more simple by the coincidence of the horizontal plane of projection in counter-revolution with the vertical plane of projection.

在球络法作旋转曲面的阴影中，则为使水平投影H的反旋转与直立投影面v相重合，因而更简化了这种球络法。

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Objective : To understand relation between the clockwise horizontal plane T loop in vectorcardiogram ( VCG ) and myocardial ischemia.

目的: 弄清心向量图(VCG)横面T环原发性顺钟向运行 ( 顺转 ) 与心肌缺血的关系.

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Cases with clockwise horizontal plane T loop may easily suffer from cardiac neurosis.

环顺转者易于发生心脏神经官能症.

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When supporting, as far as possible face plate's working surface will adjust in the horizontal plane.

支承时, 尽量将划线平台的工作面调整到水平面内.

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The plumb line is always perpendicular to the horizontal plane.

铅垂线总是垂直于水平面的。

provided by jukuu

Of a source. The luminous flux emitted above [ below ] a horizontal plane passing through the source.

对光源而言. 高于 [ 低于 ] 通过光源的水平面而发射的光通量.

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And as long as I torque it like this, that spin angular momentum wants to go around in the horizontal plane.

只要我这样使力，旋转的角动量就是想要，水平的转动。

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Reliability analysis of the transmission shaft of the all-moving horizontal tail for a fighter plane

歼击机全动平尾转轴梁的可靠性分析

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Electromagnetic force distributes circumferentially at horizontal plane, and tangential electromagnetic force is proportional to the distance to the bloom centre.

电磁力在铸坯水平剖面上呈周向分布，且切向电磁力与到中心距离成正比。

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Measure the distance between the center point of aneurysmal neck and the nearest point of ipsilateral anterior and posterior clinoid and the angle between the major axis of aneurysm and the aneurysmal vertical projection line on horizontal plane, coronal plane and sagittal plane.

测量后交通动脉瘤的瘤颈中心到同侧前、后床突最近点之间的距离以及瘤颈长轴在水平轴面、冠状面和矢状面三个平面偏离中线的角度。

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In this paper, the transmission shaft of the all-moving horizontal tail for a fighter plane is considered as a structural system, and its failure probability is analysed.

本文从整个构件系统着眼，研究某型歼击机全动平尾转轴梁静强度的可靠性。

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A vertical line is drawn normal to a horizontal plane.

垂直于水平面画一条垂直线.

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The horizontal plane sometimes is referred to as the transverse plane.

水平面有时也称为横断(切)面.

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The legs should be positioned in the same horizontal plane, not on edge.

安装时每一段必须在同一水平面上, 还有就是不要安装在边缘.

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The plumB line is always perpendicular to the horizontal plane. Simulation Study and Industrial Practice of Double SENs in Beam Blank Mold

铅垂线总是垂直于水平面的。异型坯连铸双浸入式水口浇铸技术模拟研究及工业实践

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Since a horizontal plane through the spindle rotating axis of the CNC lathe is selected as the measuring plane and a laser optical measuring device is mounted in the place of the cutting tool, both the measurement and the derivation are simplified.

由于选择通过主轴旋转轴线的水平面作为测量平面，同时把激光测量元件安装在刀具的位置，从而使得测量工作和公式推导大为简化。

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Acoustic Locating Techniques for the Burst Point in Horizontal Plane

平面炸点声学定位

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Capsizing moment capstan a windlass rotated in a horizontal plane.

在水平面旋转的绞盘。

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Application prospect The temperature difference analysis at the same horizontal plane of the converter

合成塔同平面温差的分析

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The word horizontal is applied only to the plane which is tangent to the ground-level equipotential surface.

地平面这个词则只表示与地面水准等位面相切的平面。

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The plumbline is always perpendicular to the horizontal plane.

铅垂线总是垂直于水平面的.

《现代英汉综合大词典》

Threefold Analysis and Instruction of Errors in Generalized Transitional Relative Clauses; a windlass rotated in a horizontal plane.

广义转折关系复句偏误的三个平面分析与教学在水平面旋转的绞盘。

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PLANE SURFACE SHAPE DYNAMIC INTERFEROMETER Dynamic System Identification of Manned Submersible in Horizontal Plane

平面面形动态干涉仪载人潜水器水平面动力学模型系统辨识

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