In order to monitor land subsidence in Tianjin area,a GPS network was established in 1995 as a complementary means of the precise leveling.
为了监测天津地区的地面沉降,配合精密水准测量,1995年布设了一个GPS监测网,每年的10-11月进行一次精密GPS测量,并与同期进行的精密水准复测的垂直形变结果进行比较研究。
The relative altitude variations at these points were analyzed using ten years replicated observations in this paper,and they were compared with the results of precise leveling by the authors.
本文作者利用十年的重复观测结果分析了这些点的相对高程变化,并与精密水准测量结果进行了比较,讨论了它们的差异和一致性,最后估计了GPS方法测定地面垂直变化的精度。
On the basis of the research on the contrast between GPS and precise leveling from 1995 to 2004, the actual accuracy of the two methods is tested.
根据对1995~2004连续10年的GPS大地高与精密水准测量数据的对比研究,验证了两种方法的实际精度,结果表明GPS大地高变化完全可以像精密水准测量一样高精度地获取水准测量点的沉降值,可用于地面沉降监测。
Aimed at different understanding and view point,based on precise level monitoring,GPS techniques and systematic analysis of in situ monitoring data of scores of years,the authors put forward a perspective of surface subsidence has certain self recoverable capability,summed up the range of surface recoverable subsidence threshold,narrated rational method and in situ monitoring essentials.
针对地面沉降问题的不同认识与见解,采用精密水准监测技术、GPS技术,在系统分析几十年原位监测数据的基础上,提出了地面沉降具有一定自恢复能力的观点,总结出了地面沉降可恢复性沉降阈值的范围,叙述了地面沉降原位监测的合理方法及监测要领。
This is a report of the research about the Chinese mainland vertical motion with the help of the methods employed,results obtained in recent fifty years, using the materials of the national high precision leveling in three periods since the establishment of the People s Republic of China.
报告了利用中华人民共和国成立以来 ,国家 3期高精度水准测量资料 ,研究中国大陆近 5 0年来垂直运动的方法与结果。
It would expend more labor and material in the traditional precision leveling.
运用传统的观测计算方法,进行精密水准测量,需消耗较多的人力物力,而采用现代的技术与设备,不仅精度满足要求,而且省工省时,速度大大加快,粗差几乎消除,应用更加广泛、便利。
The Accurate Level Surveying to Pile Vertical Compressive Static Load Test
精密水准测量在单桩静载荷试验中的应用
Implementation of National First Order Leveling using High Accuracy Electronic Level
利用精密电子水准仪进行国家一等水准测量
A Method of Leveling Across River by Using Precision Electronic Total Station
一种利用精密全站仪实施跨江水准测量的方法
Application and Research of Precise Trigonometric Leveling in Second Leveling in Mountainou Area along Passenger Dedicated Line
精密三角高程测量在客运专线山区二等水准测量中的应用研究
Technology of Total Station Instrument Precise Trigonometric Leveling used for Second-Grade-Leveling Elevation Survey
全站仪精密三角高程法用于二等水准测量的技术
Application of Precise Triangle Height in Second Order Leveling of Dayaoshan Tunnel
精密三角高程在大瑶山隧道二等水准测量中的应用
accuracy(trueness and precision) of measurement methods and results-part 3:intermediate measures of the precision of a standard measurement method
测量方法和测量结果的精确性(精度和精密度)-第3部分;标准测量方法的精密度的间歇性测量
HYPSES (Hydrographic Precision Scanning Echo Sounder)
水文测量用精密扫描回波测深器
The High Precision Level Measures in Settlement Observation Application;
高精度水准测量在沉降观测中的应用
Study on Precise Hydrographic Surveys Based on GPS Technology;
基于GPS技术的精密水深测量方法研究
Hydrographic Surveying Based on GPS Precise Point Positioning
基于GPS精密单点定位技术的水深测量
It is suitable to be used as precise measuring standard and precise AC/DC resistance standard for factories, colleges, and research institutes.
适用于工厂、学校和科研单位作精密测量及精密交/直流电阻标准。
Application of the Fabry-Perot Etalon in Precision Measurement
法布里—泊罗标准具在精密测量中的应用
Precision Analysis of Total Station Trigonometric Leveling Replace Leveling
全站仪三角高程测量替代水准测量的精度分析
a nice bit of craft; a job requiring nice measurements with a micrometer; a nice shot.
工艺精湛的马嚼子；需要使用测微计精密测量的工作；准确的射击。
The discuss of the precision in the GPS height replacing the 4 and 5 grade leveling
GPS测高技术代替四、五等水准测量精度探讨
Application of Photoelectricity Sensor in Bar Code Staff Precision Test System
光电检测传感器在条码型水准尺精密检测系统中的应用
surveyor's level
(矿坑)测量水准器