大地

The project is proposed to improve the scale parameters of method 2 coordinate system conversion and a reasonable assessment of the local coordinate system to achieve local and national geodetic coordinate system conversion, changing the original control net all kinds of construction projects can only choose to independent local coordinate system, but not with the national geodetic datum unification.

该项目提出用改进的尺度参数法进行两坐标系的合理转换与评估，实现了地方局部坐标系与国家大地坐标系的转换，改变了原来各类工程建设控制网只能选择地方独立坐标系，而不能与国家大地基准统一的局面。

In this paper, the theories of lunar control network foundation and lunar map projection are studied. Three foundation methods of lunar control network and the progress in American lunar control network are summarized and analyzed.

月球大地测量是月球探测的主要任务之一，本文主要对月面大地控制网的建立理论以及月球投影的理论和方法进行研究。

In the mean time, the discussions in this paper refer to the application of Neumann boundary value problem, the determination of height system and the definition and solution of GPS boundary value problem.

理论上物理大地测量的基本研究方法，已由于GPS技术的出现而发生改变。同时，直观上物理大地测量确定地球几何形状的一系列理论、方法和技术也将逐步由GPS所取代。

Bared on the theory of plate tectonics, neural network, geologic hazards analysis and the remote sensing and monitoring of geotechnical techniques, it also finishes about the map of seismotectonics in Taiwan area, seismic risk map form 2001 to 2010 in Taiwan areas, the yearly tendency analysis of seismicity and the harmful analysis of seismic at Chiayi city.

本文由大地工程的板块构造学说、类神经网路应用、地质灾害分析和大地遥测与监测技术应用等出发，完成(1)台湾地区的地震地体构造区分图；(2)台湾地区未来10年的地震危险图；(3)年度地震趋势分析方法；以及(4)嘉义示范区的地震危险性与地质灾害分析等有关地震与震害预测之研究。

The application of research method for noble gas in crude oil to petroleum geology provides a new way for inferring natural gas and oil source,tectonic backgrounds,geothermal flow value and the effect of water injection in oilfield.

原油稀有气体研究拓宽了稀有气体在油气地质领域的应用范围，为判识气体来源、大地构造背景、大地热流、油源和油田注水效果提供了一种新的方法。

In this paper, firstly, the new combined error model of cumulative geoid height influenced by three error sources including the inter-satellite range-rate of K-band ranging system, orbital position of GPS receiver and non-conservative force of accelerometer from GRACE satellites is established using the semi-analytical method. Secondly, the dependability of error models is demonstrated based on matching relationship among the accuracy indexes of key payloads. Finally, the accuracy of global gravitational field up to degree and order 120 is effectively and rapidly estimated from GRACE Level 1B measured observation errors of the year 2006 publicized by the Jet Propulsion Laboratory in the USA, and the cumulative geoid height error is 18.368 cm at degree 120, which preferably accords with the Earth's gravitational field model EIGEN-GRACE02S provided by the GeoForschungsZentrum Potsdam in Germany.

首先基于半解析法建立了新的GRACE卫星K波段测量系统星间测速、GPS接收机轨道位置和加速度计非保守力误差联合影响累计大地水准面的误差模型；其次，基于各关键载荷精度指标的匹配关系，论证了误差模型的可靠性；最后，基于美国喷气动力实验室公布的2006年的GRACE Level 1B实测误差数据，有效和快速地估计了120阶全球重力场的精度，在120阶处累计大地水准面的精度为18.368 cm，其结果和德国地学研究中心公布的EIGEN-GRACE02S全球重力场模型符合较好。

Then the PTt-D paths in different places have been constructed and compared with those of the typical low-pressure and mid-pressure metamorphism both within China and abroad. Based on their similarities and differences and combined with the study on the characteristics and petrogenesis of granitic rocks, the protolith of metamorphic rocks and their tectonic significance, the tectonic setting and the geodynamic mechanism that caused the metamo rphism.

据此构筑各地区的PTt-D轨迹，并与国内外一些典型低压和中压变质地区相对比，分析彼此的共性和特性，再结合花岗质岩浆作用的特征及成因，以及原岩建造及其所代表的大地构造环境等方面的资料综合分析，以确定本区当时的大地构造环境和引起这种样式变质作用的地球动力学机理。

Our dead never forget this beautiful earth, for it is the mother of the red man.

我们是大地的一部分，大地也是我们的一部分。

The results show that,after considering the Geodi-spheroid separation(the reference ellipsoid and the EGM96 Geoid are used as vertical datum for GPS and SRTM respectively),the height differences between SRTM and GPS are very small.

结果显示，经过大地水准面差距补偿后(GPS和SRTM分别采用参考椭球面和EGM96大地水准面作为高程基准)，SRTM和GPS高程的差异非常小，基本上在0附近波动。

Based on TIKHONOV regularization method and considering sufficiently the practice of Geodesy, the main thread of the choice of the regularizer and the determination of the smoothing parameters is grasped and the in-depth research on the ill-posed problems in Geodesy is carried out.

本文基于TIKHONOV正则化方法和欧吉坤研究员提出的选权拟合的研究思路，充分考虑大地测量实际，抓住正则化矩阵的选取和正则化参数的确定这条主线，对大地测量中的不适定问题进行了深入研究，建立起了一套较系统的不适定问题处理理论及方法的框架，进一步发展了TIKHONOV正则化方法。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。