height datum的例句大全

in general the accuracy of geoidal heights, as given by spirit leveling, much exceeds that of any other system.

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。2.The Origin Vertical Shift of National Height Datum 1985 with respect to the Geoidal Surface1985国家高程基准相对于大地水准面的垂直偏差

Geiod or quasi-geoid is a height datum for acquiring geospatial information.

大地水准面或似大地水准面是获取地理空间信息的高程基准面.

The traditional hydrographic model is that plane position is determined by GPS, and depth is observed by echo sounding system, under the condition of possession of tide observation datum, the height point under water can be gotten.

传统的水下地形测量模式定型于利用GPS测定水底点的平面位置，利用测深仪测定水底点的深度，附之以瞬时潮位资料，获得点位的高程。

On the height difference comparison datum& analyses of the height difference comparison datum in Li Mountain

论高差比较基准&骊山高差比较基准分析

Height of gravity points that is height above sea level rather than ellipsoid height measured with GPS used in gravity survey in China was measured by method of ignoring height abnormity within a range of 50 km from datum mark.

GPS测量测得的是椭球高程，而我国重力测量求得的是水准高程。目前，野外工作中采用GPS基准站周围50km范围内忽略高程异常的办法进行重力测点高程的测量。

It briefly introduces the historical change of Wusong Datum in the Changjiang Estuary region, and analyzes the spatial variations of regional mean sea level and theoretical bathymetrical datum plane in this region. A discussion is also given to the height system of the Changjiang Estuary region.

简要介绍长江河口地区吴淞零点的历史沿革，分析了长江河口地区水域平均海水面、理论深度基准面的空间变化，进而讨论长江河口地区的高程系统。

In this paper, the observed land surface height data and tidal data in the Yellow River delta foreland area are used to describe the variations in depth datum and tidal level in the area.

通过黄河三角洲前沿陆地高程的变化和验潮获得的资料，介绍了黄河三角洲前沿深度基准面的变化和潮位变化情况。

Bedrock bench mark is an important surveying datum mark of land subsidence monitoring and height control.

基岩标是地面变形监测、高程控制测量的重要基准设施。

This paper proposed that the tidal datum near the tide station could be used to divide the suitable mudflat height for mangrove afforestation. This method avoided using some blur conceptions such as high tide flat, middle tide flat and low tide flat once used.

提出利用邻近验潮站的潮汐基面划分各树种的宜林（造林）滩涂高程的方法，克服了以往通常用高、中、低潮滩表示的模糊概念；