查询词典 orthometric

However, the abundant GPS height applied to several kilometers line-road engineering even hundreds kilometers of hilly and mountainous area was one of the hot topic in surveying fields.Firstly, this paper introduced the concept of geodetic height, orthometric height normal height and their relation one another.

而针对长达几十公里甚至几百公里且穿越崇山峻岭的线路工程，如何有效利用大量的GPS高程信息使其成为工程项目需要的正常高，是测量工作者非常关心的问题。

Products have good thermal stability anddecomposition temperature above 200℃; Selected lauryl amine as a case, then optimizedthe synthesis conditions by orthometric trial, and obtained the best synthesis technichs: themolar ratio of 1: 2.1, the reaction temperature was controlled at 80℃and the reaction timeof 16 h, reaction to the solvent n-propanol.

并对其热稳定性进行了分析，合成产物具有较好的热稳定性，分解温度都在200℃以上；以十二胺为例，用正交实验法优化合成条件，获得最佳合成工艺为：摩尔配比为1：2.1，反应温度控制在80℃，反应时间为16h，反应所用的溶剂为正丙醇。

The collimation error correction and orthometric correction (altitude over more than 100 m in the examining area) must be involved in the systematic error corrections of third-order level calculation.

但是在视准轴误差方面，不管是二等或是三等水准测量，若使用电子水准仪时，则因仪器已在内建之程式中自动加入改正，换句话说，根本不需另外再改正。

The main goal of this study is using the new Free-Air anomaly grid data of Taiwan Island to interpolate and derive the Bouguer anomaly and gravity are put into orthometric correction formulas and evaluates the results.

本文尝试采用台湾自由空间重力异常网格资料内插推求布格重力异常及重力值，并配合严密正高改正公式进行正高改正之化算。

According to this research, the root mean square error could achieve ±1.156cm,±1.253cm and ±1.376cm by adopting hyperbolic mode, three times of the distance mode and distance square model. Its precision is good enough for engineering measurement. It provides not only the quicker methods to measure the orthometric height on survey engineer, but also a academic reference on regional geoid model

实验结果发现，经数学模式改正后双曲线模式、距离三次方模式及距离平方模式分别能达到±1.156cm、±1.253cm及±1.376cm合乎工程测量规范之标准，本研究在工程上不仅提供实务上快速测得正高的方法，於学术上亦可提供区域性大地起伏模型相关研究之参考。

As the result of theoretical analysis and practical test, the systematic error corrections of the second-order level measurement must include collimation error correction, refraction error correction and orthometric correction (altitude over more than 50 m in the examining area).

经理论分析与实际测试后发现二等水准测量须做视准轴误差、折射误差与正高改正（测区标高超过50公尺以上），而二等水准测量，则须加人视准轴误差，测区标高超过100公尺以上，亦需加人正高改正。

This study thoroughly inspects reciprocal method and leap-frog method of EDM trigonometric leveling along with relationship between EDM height, ellipsoid height, and orthometric height. An experimental area with 200m, 400m and 600m span intervals were set up with vertical angle error ±1.5〞and EDM error ±（2mm+2×10-6×Smm）.

本研究规划实验区实地针对200m、400m、600m三种测段长，采用之全测站仪之垂直角中误差为±1.5〞，测距中误差为±（2mm+2×10-6×Smm），进行EDM三角高程测量，并对测量方法及观测成果精度进行分析，实际探讨短距离EDM三角高程代替水准测量的可能性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐