本文提出在弹道测试中摄影经纬仪的一种布局方式——光轴垂直法及其计算公式。
This article gives a new layout of two phototheodolite s in the ballistic measurement in which their light axes are perpendicular to each other and the calculating formulas are deduced.
我们是知道如何去求水平集的法向量的，也就是垂直于水平集的法向量。
And we know how to find a normal vector to the level set, namely the gradient vector is always perpendicular to the level set.
但是在寻找法向量时，可以确定法向量与水平面垂直。
But, when it comes to looking for the normal vector, be rest assured that the normal vector to a horizontal plane is just vertical.
看到了吧，系数变为0了，当直线垂直于法向量的时候。
So, see, this coefficient becomes zero exactly when the line is perpendicular to the normal vector.
那是因为这条线垂直于全部法向量，所以它平行于全部平面，所以它平行于全部平面，为什么它在面内而不是平行于该面？
Well, that's because my line is perpendicular to the normal vectors, so it's parallel to the planes it's parallel to all the planes Now, why is it in the planes instead of parallel to them?
它垂直于其表面指向外面，但这与球面法向量的指向的方式有点不同，圆柱的边缘是竖直的。
Well, it is sticking straight out, but sticking straight out in a slightly different way from what happens with a sphere. See, the sides of a cylinder are vertical.
逻辑框架法是通过垂直逻辑关系检验项目的效果和作用，通过水平逻辑关系对资源和成果进行说明和评价。
Logical frame method is to test project effect and function through vertically logical relations and to appraise the resources and the achievement through horizontally logical relations.
根据气泡的尺寸划分气相，采用时间平均法建立了描述垂直管道内层流泡状流运动的多流体模型。
A more detailed multi fluid model was developed with the gas phase divided into several groups according to bubble size to describe bubbly flow in a vertical pipe.
通过控制温度和湿度，用垂直沉积法快速制备出了不同厚度的高质量二氧化硅和聚苯乙烯胶体晶体薄膜。
Polystyrene and silica colloidal crystal multilayers with controlled thickness are fabricated quickly by the vertical deposition method at certain temperature and humidity.
文章以郑西铁路客运专线函谷关隧道横洞挑顶为例，介绍了一种新型挑顶施工工艺——垂直挑顶法。
Taking the cross cave propping in Hanguguan Tunnel of passengers special line on Zhengxi railway, this paper introduces a new construction technique of propping - vertical propping method.
推导了考虑水平和垂直位移时空腹桁架连续代入法的计算公式。
The calculation formulas of successive approximations method of the Vierendeel truss are derived by considering horizontal and vertical displacement.
利用垂直截面法测量了08f钢经不同形变氮化复合后冲击断裂表面的分形维数。
Fractal dimension of impact fracture surface of 08f steel was measured by vertical section method.
基于法布里珀罗(F P)腔光束干涉理论，建立垂直腔半导体光放大器(VCSOA)的双稳模型。
Based on the beam interferential theory of Fabry-Perot semiconductor laser, a bistable model of vertical cavity semiconductor optical amplifier (VCSOA) was established.
用动态法研究了饱水细沙土柱中含酚废水在垂直流动情况下，土壤颗粒对苯酚的吸附传质过程。
In this study, adsorption mass transfer process of phenol by soil particles was investigated by means of dynamic method in a water-saturated fine and column under vertical flow of phenolic effluents.
采用钻孔_电测法对LY 12铝合金垂直于焊缝方向的焊接残余应力及其分布规律、产生的原因进行了分析，探讨了残余应力的消除措施。
In this paper, welding residual stress vertical to welding seam in LY12 armour aluminum alloy was measured by hole-drilling and electrical-measurement method.
采用切片法、相似度概念和热平衡以及进口温度检验法，对收集到的圆管垂直向上流动临界热流密度实验数据库进行了分析。
The world vertical upward flow round critical heat flux experimental database is analyzed based on the slice method, similarity measure, heat balance and inlet temperature verification.
在字符分割方面，作者采用二值图像垂直投影法与先验车牌知识相结合进行字符分割。
About character divide, author USES 2 value image vertical projection methods with known plate knowledge to divide character apart.
波浪荷载沿垂直立管的分布是不规则的，这对工程中用有限元法分析立管强度进行等效波浪结点力的计算带来困难。
The irregular distribution of the wave load along the erect riser makes the computation of equivalent wave nodal force difficult when applying Finite Element Method to analyze risers strength.
根据云南地区的实测强震加速度资料，采用回归分析法研究了云南地区的地面水平、垂直峰值加速度衰减规律。
Based on the observed data of strong motion acceleration in Yunnan region, the surface attenuation pattern at horizontal and vertical peak acceleration is studied by regressive analyzing method.
采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。
By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam.
本文是用激光全息照相法研究肋形楼板模型的垂直振动特性。
The vertical vibrating characteristics of ribbed floor plate models are studied in this paper by using laser holography.
根据野外调查和中国草地类型分类法，对青海省大通种牛场草地类型及其垂直分布进行了分析研究。
According to field investigation and the Chinese method of grassland classification, analysis was made of the grassland types and their vertical distribution on the Datong Cattle Farm in Qinghai.
采用土钻法和盆栽试验研究了渭北地区主要造林树种的垂直根系分布特征及其抗旱性。
Methods of soil auger and pot experiment were used to research vertical root distributions and drought resistance of main planting tree species in the Weibei loess plateau.
采用聚丙烯酰胺凝胶垂直平板电泳法对白唇鹿、马鹿和梅花鹿的红细胞乳酸脱氢酶（LDH）以及超氧化物歧化酶（SOD）同工酶酶谱进行研究。
The white lipped deers, red deers and sika were used to study the isozyme spectra of LDH and SOD in erythrocytes by means of polyacrylamide gel electrophoresis in vertical plate glass.
国内外施工高垂直度钻孔的唯一方法就是以有效防斜为基础，加密测斜，并及时纠斜。
The only way to drill a high verticality borehole both in home and abroad is based on effective hole straightening, enhancing inclination surveying and on time straightening.
采用自然沉降法、离心法和垂直沉积法组装了聚苯乙烯胶晶。
Polystyrene colloidal crystals were assembled by natural sedimentation, centrifugation and vertical deposition methods.
在变形监测点位稳定性分析中，平均间隙法是一种常用的方法，特别是在垂直位移监测网的稳定性分析中，其应用更为普遍。
In the analysis of the point stability for deformation monitoring, especially in height displacement monitoring network, the method of mean gap is commonly used.
同时解决了曲面法矢垂直于回转平面时刀轴矢量难以确定的关键问题。
Also, a solution is offered to solve the problem of generating tool axis vector when the surface normal ts perpendicular to rotary plane.
在画法几何投影变换中，不论用换面法或旋转法，一般位置直线均需两次变换才能变成投影面垂直线。
In the transformation of descriptive geometry, no matter the method of change plane or revolve, the oblique line can be changed to a vertical line in two successive transformations.
在画法几何投影变换中，不论用换面法或旋转法，一般位置直线均需两次变换才能变成投影面垂直线。
In the transformation of descriptive geometry, no matter the method of change plane or revolve, the oblique line can be changed to a vertical line in two successive transformations.
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