三角锁

基于Excel的两端基线单三角锁平差及坐标计算

Even-Bad and Coordinate Calculation of Both Ends Base Line of Single Triangle Lock Based on Excel Platform

本文指出了单三角锁近似平差计算传统算法的局限性；

In this paper , the main defects of traditional approximate adjustment calculating method of single triangulation chain has been pointed out .

独立闭合三角锁的平差和应用

The Adjustment for Chains of Triangles of Independence Closure and Application

单三角锁近似平差计算的虚拟附合导线法

Fictitious Connecting Traverse Method for Non - rigorous Adjustment of Triangulation Chains

计算单三角锁的一种新方法

A new method of calculating single chains of triangles

提出利用虚拟附合导线的形式，解决单三角锁计算问题的新算法；

A new approximate calculating method of single triangulation chain using invented connecting traverse principle has been given .

而一等三角锁系的图形条件和极条件常数项则不受旁折光影响。

The side-refraction doesn 't affect the absolute terms of the figure conditions and pole conditions of first-class triangulation chains .

沙漠地区旁折光对三角锁系的方位角条件及基线条件常数项的影响表现为系统性误差。

The influence of the side-refraction in desert regions on the absolute terms of the azimuth conditions and base-line conditions of triangulation chains is expressed as systematic errors .

本文对沙滇地区的布设的控制网平差处理以及为提高三角锁系的精度均有一定的意义。

The paper has certain significance to layout , survey and adjustment process of the control network and also for improving the accuracy of triangulation chains in desert regions .

本文通过分析相关的数学模型，提出了双基线图根三角锁内业计算的计算机程序。

In this paper , the programming method to deal with the survey office computation of double baseline mapping triangulation chain was given by analyzing the relative mathematical models .

本文主要解决测量方向、以条件平差法严密平差方向的三角锁，其测量误差对隧道横向贯通精度影响值的严密计算问题。

This paper is presented for the purpose to solve the problem of rigorous calculation of the accuracy of tunnelling in transverse direction under the influence of errors of tunnel triangulation , in which the directions are measured and adjusted by the method of least square with conditions .

10例CT检查表现为位于颈前三角区、胸锁乳突肌前缘的囊性肿块；

CT : those lesions were showed as cystic ones in the anterior triangle area of the neck or along the anterior border of the sternocleidomastoid muscle .

线形锁和单三角锁相比较，它的点位误差小于单三角锁的点位误差。

The error of the weakest point for the linear chain of triangles is less than for the simple chain .