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His plan is to drop perpendiculars from each point of the curve upon two planes intersecting at right angles.

他的计划是:从曲线的每个点处作线段垂直于两个互相垂直的平面。

Second, transient flow for vertical well and fractural well in porous media with arealanisotropy has been researched in this paper. The analytic solution for vertical well andsemi-analytic solution for vertical fractural well is developed by using image inversion,superposition principle, Laplace transformation, Fourier transformation, as well as theirinverse transforms, and storage and skin are taken into account. For vertical fractural well,influence of pressure and productivity is studied when the orientation of artificial fractureisn't in accordance with the direction of major permeability, it is fundamental to evaluatepotential and analyze well test data.

文中研究了平面各向异性储层不定常渗流问题,建立了平面各向异性储层交叉直线边界中一口直井渗流的数学模型,利用镜像反演、Laplace变换、Fouier变换及其反变换推导了不同边界条件下直井的Laplace空间解析解,考虑井储和表皮的影响,分析了曲线特征及影响因素的敏感性曲线;并运用影响椭圆及Duhamel叠加原理,推导了平面各向异性储层中垂直裂缝井的压力分布方程,考虑了水力裂缝与主渗透率轴成一定角度对压力及产能的影响,为垂直裂缝井的产能评价及试井分析提供依据。

The kinetic energy mainly comes from system kinetic energy transmission and wind divergence, that is, the level of divergence of kinetic energy transmission and wind through the isobar kinetic energy created by cyclonic vortex can be made strengthened.

同时,中上层正涡度的水平平流随高度增加导致了垂直运动增强,由垂直平流造成的正涡度由低层向高层输送导致了中层短波槽加深,反过来又有利于低层辐合的增强,对MCV的形成和发展起到了间接的作用。

However,changing pattern of isogram of soil water content were similar between near layers along vertical section.

土壤水分的等值线在垂直剖面上的分布规律在相同的尺度下是不同的,并且与经典统计学参数所反映的垂直变化规律也不相同,但相邻层次上具有相似性。

The wet adiabatic lapse rate (60C/km) is thus less than the dry adiabatic lapse rate.

湿绝热垂直递减率是小于干绝热垂直递减率。

Metatarsus-- Short and strong, perpendicular to the second thigh bone. When viewed from behind, they are upright and parallel.

跖骨:短而结实,垂直于第二节大腿骨,从后面观察,他们垂直且相互平行。

This paper focuses on the subject of high precision vertical pendulum tiltmeter, and studies deeply a series of problems that involve in high precision capacity micrometry sensor, the mechanical structure of the tiltmeter and its parts, adjusting pendulum and calibration of tiltmeter, and practical application of the vertical pendulum tiltmeter.

本文围绕高精度垂直摆倾斜仪这一主题,对高精度电容测微传感器,倾斜仪机械本体的结构及其零部件,倾斜仪的调摆和标定,以及垂直摆倾斜仪的实际应用等一系列问题进行了较为深入的研究。

Dry, cold air is induced reaction of transformation.6vertical wind shearIS a important role 7 the interaction stage of tropical cyclone with a midlatitude baroclinic zone was an essentialcomponent.

垂直风切变相互作用是激发热带气旋的变性不可获缺的条件(7)热带风暴和中纬度斜压带相互作用是变性的必要条件:只有减弱的热带风暴嵌入先前存在的中纬度斜压带,才能完成正压向斜压的转变。正是热带气旋环流和斜压带和垂直风切变相互作用激发了热带气旋的变性。

From the point of vertical interconnect via, the matrix pencil moment method, FDTD, edge-element FEM, microwave network model method and CAD model method of vertical via interconnect were introduced. The analysis of these methods shows their advantages and shortcomings.

垂直互连通孔入手,介绍了垂直通孔互连的矩阵束矩量法、时域有限差分法、边基有限元法以及微波网络模型法和CAD模型法,分析了这些方法已经取得的结果,并指出了这些方法的优缺点。

On the basis of model of steady state of two dimensional semi infinite vertically buried tube and Newton exchange heat formula, the outside heat release coefficient is deduced from vertical tube in different depth of geothermal water well to ambient medium.

根据二维半无限大垂直埋管表面的稳态放热模型及牛顿换热公式,推导出地热水井在不同深处的垂直管道外表到周围介质的外部放热系数。

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