Application of sedimentary base level in the study of seismic sequence stratigraphy;
基准面变化在地震层序地层研究中的应用
Applications of the identification techniques of base levels to palaeogeographic research: an example from the Mesozoic strata in the Qaidam Basin, Qinghai;
基准面识别技术在古地理分析中的应用——以柴达木盆地中生代地层为例
Jurassic stratigraphic base-level cycle and subtle oil reservoir in Baijiahai-Wucaiwan,Junggar Basin,NW China;
准噶尔盆地白家海-五彩湾地区侏罗系基准面旋回划分及隐蔽油气藏
Discussion on the changing patterns of base-levels in faulted lacustrine basins;
断陷湖盆基准面变化模式探讨
Through research for the base-level cycle and capability of the reservoir in Qiudong sag in Tuha basin, it is thought that the short base-level elevating obviously controls the capability of reservoir.
通过对吐哈盆地台北凹陷丘东洼陷中侏罗统层序基准面旋回与储层储集性能的对比分析认为,丘东洼陷短期基准面的升降对储集性能具有明显的控制作用。
Analyzed the disadvantage of traditional space angles solution in the2D design method,the author discusses the method of solving space angle problems in 3D space,by proposing using the basic definition of space angle,and applying the 3D modeling theories of geometrical restriction 、datum plane、the function of measurement and so on.
分析了二维设计方法中传统空间角度求解方法的弊端,尝试利用三维造型软件中的几何约束、基准面等基本理论和测量功能,并结合空间角度的定义方法,讨论了在三维空间中求解空间角度问题的方法。
By this means,we can not only determine the errors of the curved surface shape,but also figure out the real place of curved surface in the space,accordingly reduce the requirement to measuring location of datum plane.
该方法不仅可以确定曲面面型误差 ,同时还可以计算出曲面在空间的真实位置 ,从而降低了对测量定位基准面的要求 ,因此本方法对三坐标测量曲面有重要意
A novel approach of wave equation datum plane correction based on the single square-root operator is proposed: the seismic data on rugged acquisition topography is continued up to the datum plane above topography starting from some depth below near surface,by filling an additional layer between datum plane and topography with the velocity close to that of the first arrival .
基于单平方根算子的波动方程基准面静校正方法,将起伏地表的叠前数据通过波场外推到高于地形线的某一基准面上,在基准面与地形线之间填充一套新地层,填充层的速度选为接近于直达波;从地形线以下的某深度出发,在共炮点集中,根据菲涅尔原理以及检波点的空间位置,以检波点接收的地震数据为二次震源,通过上行波正向外推将检波点延拓到基准面上;再根据炮点、检波点互易原理,通过下行波反向外推将炮点延拓到基准面上。
The datum probleum of time-depth conversion and depth migration in complicated-surface area;
复杂地表区时深转换和深度偏移中的基准面问题
Study on migration datum in complicated terrain area;
复杂地表区偏移基准面问题研究
Application of wave equation datum to deep layer exploration;
波动方程基准面在深层勘探中的应用
This method is based on virtual eversion methodology along electric field lines, and featured with a reference surface optimization using non-rigid registration.
该方法以沿电场线虚拟外翻理论为基础,重新设计了构造外翻的重要参考曲面——外翻基准面的算法,引入了非刚性配准思想对外翻基准面进行优化。
A virtual eversion method for human blood vessels is proposed in this paper,based on the virtual eversion methodology along electric field lines,and featured with a reference surface optimization using non-rigid registration.
该方法以沿电场线虚拟外翻理论为基础,以非刚性配准方法优化外翻基准面为特点,具有视野开阔、观察便捷、能保持与周围器官解剖对照关系等优点。
It gives the method to construct the reference surface,the definition of 3D parameters and the numerical algorithms.
给出了基准面的构造方法 ,三维评定参数的定义及算法 ;最后对实测零件数据分别进行二维和三维评定 ,对评定结果加以比对 ,反映出三维评定的整体特性。
Relationships among depth datum levels in the Yangtze Estuary;
长江口海图深度基准面换算关系研究
chart datum level
海图基准面海图基准线
non-circularity of reference surface
基准面不圆度 -光纤的
reference surface diameter tolerance
基准面直径容差 -光纤的
reference surface diameter
基准面直径 -光纤的
Amsterdamsch Peil
阿姆斯特丹高程基准面
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。
at right angles to the plane of the horizon or a base line.
与水平面或者基准面成直角。
Fast Virtual Eversion Based on Globally Charged Reference Surface
基于基准面全局电场的外翻快速算法
the perpendicular distance from the base of a geometric figure to opposite vertex (or side if parallel).
从几何基准面到顶端的垂直距离。
The piezpmetric head is also measured from the same datum level.
测压水头亦应从同一基准面算起。
Doubt and Discussion on the Actual Tidal Datum of Pearl River Estuary
珠江口现行潮汐基准面的质疑与探讨
Study on Precision of Chart Datum Transfer Algorithm
海图深度基准面传递算法的精度分析
International Terrestrial Reference System
国际地面基准参考系
Control Method of Road Miller Based on Depth Standard
基于深度基准的路面铣刨机控制技术
parallel to or in the plane of the horizon or a base line.
与地平线或者基准线平行，在地平面或者基准平面上。
All nets and datum's must be identified.
所有网面和基准必须可被辨认出来的.
Equivalent realizations of an ITRS
地面基准参考系的等效实现
altitude over target
以目标平面为基准的高度