高差

特别是为了克服高差，难以避免采用连续长下坡的方式展线。

Specially to overcome the elevation difference , avoids using the long and steep downhill way line is very difficult .

台站东西向水准高差的趋势性变化，可能与复盖层内地下水位的变化或抽用地下水有关。

The tendentious variation of the level elevation difference in the EW direction may be influenced by change ol ground water level and pumping ground water .

GPS水准高差拟合应用于跨河水准测量研究

Study of Normal Height Difference Fitting Method of GPS River-crossing Leveling

采用GPS大地高差代替跨河水准高差的探讨

Replacing River-Crossing Leveling Height Difference with GPS Geodetic Height Difference

GPS高差在滑坡监测中的应用研究

The Application Research of GPS Height Difference in Landslip Monitoring

H（滑坡前后缘高差）；

H ( discrepancy in elevation of front edge and back edge of landslide );

高差对GPS大地高测量精度的影响

Effect of height difference on GPS vertical accuracy

GPS精密高差测量技术的初步研究

Initial Study on GPS Precise Leveling

综合利用水准高程与高差观测值拟合GPS点高程的模型与结果分析

A GPS Height Interpolation Model Based on Integrated Observation of Height and Height Difference and Its Result Analysis

GPS观测数据经处理后，可得到两点间的基线向量及高精度的大地高差，如果已知一点的大地高，即可求得全网各点的大地高。

We can obtain the baseline vectors and high-accuracy discrepancy of geodetic height between GPS points after observation datum was dealt with .

研究了利用GPS定位技术所确定的相对大地高差，联合精确的大地水准面差距进行高程传递的方法。

This paper focuses on the study of the height transference within long distance across sea , by combining ellipsoidal height of GPS with gravimetric geoidal height .

论述了对流层时延的特性及其对GPS定位测量影响的大小。经研究认为，对流层时延误差主要影响高差精度；

The authors introduce the nature of troposphere delay effect on GPS positioning , via research , the authors consider that troposphere delay error affects mainly height difference precision .

基于邻近高差及辅助平面的TIN过滤算法是在基于高程突变的TIN过滤算法基础上，进一步对非地面点进行过滤。

After TIN filtering algorithm based on height jump , TIN filtering algorithm based on neighboring height difference and assistant plane filters the non-ground points further .

15～20m局部高差；

15 ~ 20 m local relief ;

虹吸井设置在初期坝上游附近，相对下游高差为8m。

The siphonic wells are placed at upstream of primary dam with the height difference of 8 m to downstream .

根据试验结果，如果限制每站的距离在500m的范围以内，所得高差可望达到二等水准测量的精度。

According to the experimental methods and results , if the sight distance is within 500m , the precision of the second order levelling can be reached .

论文主要贡献包括以下几个方面：（1）提出了基于高程突变的TIN（triangulatedirregularnetwork，不规则三角网）过滤算法和基于邻近高差及辅助平面的TIN过滤算法。

The main contributions of this dissertation are as following : Firstly , TIN ( Triangulated Irregular Network ) filtering algorithm based on height jump and TIN filtering algorithm based on neighboring height difference and assistant plane are presented .

这种方法采用经纬一次架设，配合5m水准尺，用水准仪测量两点高差，再通过计算就可以准确的测量出桩孔的倾斜度和斜距。

Using theodolite spanning , it can measure the gradient and slant distance of pile hole by measure the elevation difference of two points with water level ruler .

结合滨州市C级GPS控制网的建立和三等跨河水准测量的实际情况，将GPS所测大地高差与三等水准测量高差进行比较和分析，得出一些结论。

Combining with the actual situation of the establishment of C class GPS control network and third order river-crossing leveling , the geodetic height differences of GPS survey are compared and analyzed with height differences of third order river-crossing leveling , some of conclusions are gotten .

计算和实验还表明，即使在垂直敷设的情况下，SF6/N2的混合比随高差的变化也可以忽略不计。

It is shown that the gas decomposition products in the mixture are quite similar to those in pure SF_6 gas , and the variation of the mixing ratio with elevation can be neglected .

该段线路两侧山峰标高达400m左右，相对高差200余m，属丘陵地貌。

The landform of this region is hilly , and the height of mountains beside it is 400 ? m or so , and the relative elevation is 200 ? m.

实践证明以折线代替曲线进行支架布置方法是合理的，最终成桥相邻两块混凝土表面高差均小于2cm。

It is concluded that the layout method using broken line instead of curve is reasonable with the altitude difference of concrete surfaces in two centimeters .

提出在地面沉降监测中可用站坐标系下的U分量变化代替水准测量高差的变化。分析了这一方法的可能误差和大小。

It is proposed in this paper that the variation of height difference in the leveling can be substituted with the variation of U component in station coordinate system in and subsidence monitoring and the possible factors and magnitudes of the error are analyzed .

再次，针对高差错、无反馈、低冗余的通信应用环境，提出了一种具有UEP能力的喷泉码，将它与信源分层编码相结合，实现了一种增量喷泉传输方案。

This code realizes the incremental fountain scheme with the help of layered streaming for applications in environment of high error rate , non-feedback and low overhead .

进一步研究了CCD技术用于测量绳间标高差，进而测算绳间张力差的可行性，并对基于CCD理论和技术的整个监测系统的主要软硬件进行了研制和开发。

This paper studies the possibilities of measuring the altitudinal difference among the signs on cables using CCD technology , and detecting the difference of tension among cables . It also develops the main software and hardware for the whole detecting system based on CCD technology .

为提高TCP协议在长时延、高差错率网络中的性能，探测元机制做为一种主动自适应机制，在TCP的许多改进实现中被涉及。

In order to increase the performance of TCP ( Transport Control Protocol ) in networks with long propagation delay and high link error rates , detection unit scheme , an active and self_ adaptive scheme , has been involved in many implementations for TCP improvement .

再以高差法引入水塞，吸附于毛细管壁的TTAB溶解到水中，使该段毛细管的zeta电势变负；

Water plug was introduced and TTAB on the capillary inner wall could be dissolved into the water plug , which enhanced negative zeta potential of the capillary section .

海涂地的微地形对土壤1m土体含盐量有明显影响，几厘米的高差就可导致土壤含盐量的明显差异，这说明土地平整是海涂土壤改良的一项重要措施。

Tiny landform had evident influence on salinity content in 1 m layer . A centimeter step difference caused apparent change in soil salinity , which indicates that land leveling was a very important measure in management of coastal saline soils .

如果构件在护栏后面3000mm以上，则两个护栏的高差就不再重要。

If the component is more than about3000mm behind the barrier , the difference between the two barrier heights is no longer important .

由于地形崎岖、山峰众多，境内最高峰近1900m，最低处约300m，相对高差达1600m；

Because of rugged topography with numerous high peaks , the altitude of the highest one approaches 1900m while the lowest valley nearby is about 300m , so the relative height difference reaches 1600m .