重力

The structure of the boron gravity-injection system which is compared with other external similar systems is presented. Its extrusive character in its structure design shows that it plays an important role in the development process of passive driven system.

介绍了重力注硼系统的结构，并与国外设计进行了对比分析，指出了重力注硼系统在结构设计上的突出优势及在非能动系统发展过程中的重要地位。

In order to compute the failure probability of structural systems for stability of gravity retaining walls, firstly, two performance functions against overturning and sliding of gravity retaining walls were established. Then, the first order second moment theory in structural reliability analysis, i.e., the checking point method was introduced to compute the two failure modes respectively, and two corresponding reliability indexes could be obtained.

为了计算重力式挡土墙稳定性的结构体系失效概率，首先分别建立重力式挡土墙结构抗倾覆稳定性和抗滑移稳定性的功能函数，然后引入结构可靠度分析一次二阶矩法中的验算点法分别对两种失效模式进行计算，得出两个相应的可靠度指标。

Relative techniques are introduced, such as spherical gemel hoisting mechanism that made the active docking ring rotating in three-dimensional direction, intelligent gravity balance technique that could provide the force with high speed and precision to balance gravity and could automatically follow with the active docking r.

介绍了有关技术：主动环实现三轴转动的球铰吊装机构；能够高速度、高精度地提供重力平衡力，并能实现自动随主动环上、下运动的智能型重力平衡技术；保证平衡器随主动环随动的轮轨式二维平动技术，经轻量化设计，其摩擦阻力和惯性阻力很小，并对轮轨式方案进行了试验，当量摩擦系数仅为

A three dimensional, kinematical, enough resolution and geocentric coordinate frame will be established in China.

在重力基准方面，在国家2000重力基准网和国家2000大地水准面的基础上，有步骤的按省或地区推算具有厘米级精度，10km级栅格分辨率的似大地水准面。

With the latest NASA model of sea surface topography in 1996, we get the sea geoid.

另外，本文还介绍了利用逆 Stokes 公式和 Hotine 积分求解重力异常和重力扰动的快速算法。

Based on the gravity gradient measurement principle of rotating accelerometer gravity gradiometer ,an online method of accelerometers scale factor adjusting is proposed in this paper.

在旋转加速度计重力梯度仪的重力梯度测量原理的基础上，本文提出了加速度计标度因子的在线调整方法。

With the development of the ESA's GOCE mission and declaration of relative technology reports, we have many chances to know the GOCE satellite and its payloads, especially the gravity gradiometer. The paper introduces the gradiometer's measurement principle and instrument's design. All of this is based on tracking the development actuality, The purpose is to make more distinct and deeply understanding of this domain. Also we want to provide possible reference to some institutes when they study in this domain.

随着欧空局GOCE项目的进一步深入及相关技术报告的公布，人们对该卫星及其有效载荷有了更多的了解，尤其是倍受关注的核心器件重力梯度仪有了更多认识的机会，本文在跟踪当前欧空局研制中的星载重力梯度仪的测量原理、仪器设计的基础上进行了综合、分析和总结，以期对该领域的研究有更清晰、深入的了解，同时为国内进行该领域研究的机构提供可能的参考。

In this paper, the principle of the accelerometer-based gravity gradiometer is presented and its measurements formulas are derived using the basic equation of acceleration in a rotating body.

然后以美国Bell/Aero公司生产的重力梯度仪为例，导出旋转加速度计式重力梯度仪测量结果。

Satellite gravity gradiometry is a new domain of studying the detection of gravity gradients in space and their applications, in particular, suitable for detecting the short wavelength characteristics of the earth's gravity field At present it is still at the stage of developing the ultra-sensitive tensor gradiometer and carrying out the pre-research of applications.

卫星重力梯度测量是研究空间重力梯度探测与应用的新领域，特别适于检测地球重力场的短波特征。目前它尚处在研制超灵敏张量梯度仪器和应用预研究的阶段。

Satellite gravity gradiometry ; Ultra-sensitive gradiometer ; Gravity gradient tensor ; Earth's' gravity field model.

卫星梯度测量；超灵敏重力梯度仪；重力梯度张量；地球重力场模型

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。