在地形起伏较大地区，几何水准测量十分不便。
The traditional geometrical leveling is inconvenient in fluctuating area.
电子水准仪的出现是水准测量技术一次大的变革。
The emergence of electronic level is a great technique change of level survey.
介绍了二等跨海水准测量厦门海沧大桥的实施情况。
The paper introduces second-class sea-crossing leveling put into practice in Xiamen Haicang bridge.
大地水准测量必须使用刻度标于不胀钢片上的水准标尺。
Geodetic leveling should be done with staves in which the divisions are marked on a strip of invar.
国际上对水准测量数字化的研究起始于上个世纪80年代。
International research on the digitalization of leveling survey started from 1980s.
能否利用GPS水准代替常规的水准测量是人们关注的问题之一。
Whether GPS leveling will substitute common leveling or no is an important problem that people concerned.
但由于水准测量本身的特点，要实现水准测量的数字化并不容易。
But it is not easy to realize the digitalization of leveling survey because of its owner properties.
长距离跨河水准测量是特大跨径桥梁建设中高程控制的一项重要内容。
Long distance river-crossing leveling is an important job in the elevation control of the long-span bridge construction.
长距离跨河水准测量是特大跨径桥梁建设中高程控制的一项重要内容。
With the rapid development of Chinas traffic, more and more long-span bridges are needed to be constructed.
数字水准仪在1990年推出，它的问世革新了传统意义上的水准测量。
The digital level was pushed out in 1990; its appearing has reformed leveling method to traditional meaning.
其次证明了水准测量与转点标尺所立之间无关；与特点标尺的尺值无关。
The fact proves that level survey has nothing to do with turning point staff site and turning point sta.
传统的测量方法为水准测量和三角高程测量，它们都存在着不同的优缺点。
The traditional methods are geometrical leveling and trigonometric leveling. They have different advantage and disadvantage.
研究了三正弦码标尺应用于电子水准测量中实现标尺自动化读数的定位算法。
The positioning algorithm was studied of the triple sinusoidal bar code staff used in digital leveling to accomplish automatic staff reading.
水准测量是测绘学科的一个重要分支，开发水准测量程序具有重要的现实意义。
Since leveling is one of the important branches of surveying, its' software designing has great realistic significance.
介绍了测距仪的使用，分析用测距仪代替水准仪进行3、4等水准测量的精度。
This paper deals with several problems in using distance measuring meter and the accuracy analysis in using it to make class 3 or class 4 leveling instead of leveling meter.
利用水准测量，在两侧指示桩上用明显标记标出，水泥稳定碎石的铺筑设计标高。
Use level survey to mark the paving design elevation of the cement stabilized macadam with obvious mark on indication piles both sides.
铁路建造和维护设备。尖轨与辙叉的水准测量和布局维护。捣固和修整重型机械。
Railway track construction and maintenance plant. levelling and layout maintenance of points and crossing. tamping and trimming heavy mechanical.
一般说来，水准测量测出的大地水准面高程的精度，远远超过任何其它方法的精度。
In general the accuracy of geoidal heights, as given by spirit levelling, much exceeds that of any other system.
本次大赛以个人测绘仪器操作技能、四等水准测量、导线测量等技能为主要竞赛内容。
The competition in their personal mapping equipment operating skills, four leveling, traversing the contents of such skills as the main competition.
通过精度分析，该方法可达到四等水准测量的精度，提出了提高观测精度的相应措施。
The method can achieve fourth-grade leveling survey precision demand by precision analysis, and then brings forward some measure to increase observation precision.
本文采用GPS技术及常规的方向、距离和精密水准测量对三个站进行了空间归心测量。
To determine the relative positions of them, the GPS technique, traditional direction and range survey, and precise leveling are adopted in this paper.
在利用条码标尺定位测量的数字水准仪中，标尺条码图像的正确识别是实现水准测量的前提。
The correct recognition of bar code image is prerequisite for correct digital leveling with a bar code ruler.
目前在山区铁路工程测量过程中，由于地形起伏较大，传统的水准测量效率低，非常难以实施。
Nowadays, in mountain railroad engineering survey, the efficiency of traditional leveling method is low, is very difficult to practice because of terrain undulation being big.
采用测距三角高程法进行跨河水准测量，可以不量取仪器高，但观测值中有两类不同的观测量。
When completed river crossing leveling by means of trigonometric leveling with distance measurement, there are two types of observed values.
本文研究提出了在前后视距不相等的情况下进行精密水准测量的方法，分析了具体的实测方案。
A method of precise levelling under unequal back-and fore-sight length is studied and presented in this paper.
分析现有各种水准测量方法的特点，结合电子直线加速器的测量实践，提出短距水准测量的概念。
This paper analyzes the character of several level methods and brings forward the concept of short-distance leveling according to the measurement practice of LINAC.
本文用广义逆速率模型及拟稳速率模型处理了祁连山与河西走廊地区近20年来的水准测量资料。
Using the generalized inverse and substationary rate model, this paper analyses the geodetic levelling data of recent 20 years in Qilian and Hexi area.
但传统的光学水准测量也存在着劳动强度大、测量效率低下、测量数据的后续处理不方便等缺点。
There are a lot of shortcomings in traditional optical leveling survey. It includes too intensive labor, low efficiency and difficult afterward data processing.
测斜仪传感器解决了独特的意见反馈需求应用，如水准测量平台，在各种不同的行业中控制倾斜角度。
Inclinometer sensors solve unique feedback requirements for applications such as leveling platforms, controlling a dancer or controlling tilt Angle in a diverse array of industries.
采用本文的方法，可使RTK平面和高程放样与水准测量工作同时进行，有利于提高作业效率，缩短工期。
By this method, leveling and GPS-RTK survey can be carried out at the same time, which can increase work efficiency and reduce job time.
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