查询词典 specific gravity

The main gravity measurement manners are satellite altimetry, airborne gravity measurement and ship gravity measurement.

它的关键技术之一就是满足导航需要的重力图。

In this paper, the satellite gravity anomaly data are employed as pseudo free air gravity anomaly to calculate Bouguer gravity anomaly.

本文应用卫星重力异常资料作为"近似空间重力异常"，经中间层改正后给出的"计算布格重力异常"，其分布特征与该地区的地形高程呈很好的镜像相关。

Earth gravity model; free-air gravity anomaly ; Bouguer gravity anomaly

地球重力模型；自由空气异常；布格重力异常

But in recent years, the domestic and international gravity dams that are built recently are more and more few, and the gravity dams that were built in early stage have serious safe problems basically, which decide that the problem of consolidated gravity dams will become a outstanding problem in circle of w...

近年来，国内外新建的重力坝越来越少，而早期所建的重力坝，基本上都存在着严重的安全问题，这就决定着重力坝的加固必将成为世界上水利界一个突出性的问题，从而也就决定了预测重力坝使用寿命的重要性。

The computation implies that the influence of truncation error of up/downwards continuation is about 0.001 m2·s-2, the maximum error is only 0.11 m2·s-2, which can be ignored in CHAMP gravity field recovery. The influence of the reference gravity field error of up/downwards continuation is less than 0.1 m2·s-2 in general, but the maximum error can reach 1.3 m2·s-2. To reduce this error, a high-precision gravity field model should be used in the up/downwards continuation.

计算表明：延拓误差中的截断误差部分影响量级约0.001 m2·s-2，最大误差仅为0.11 m2·s-2，可完全忽略；延拓误差中的参考重力场模型误差影响随参考场选取的不同而有所差异，整体而言小于0.1 m2·s-2，但最大误差可达1.3 m2·s-2，采用高精度的参考重力场模型能大大减小延拓误差影响。

Assuming the initial background is an isothermal and hydrostatic equilibrium atmosphere in which the horizontal pressure gradients are balanced by the geostrophic winds, we study the nonlinear propagation characteristics of the gravity waves, analyze the influence of the earth's rotation on the propagation of gravity wave and compare the simulation results with that obtained by the linear gravity theory.

假设初始背景是满足流体静力学平衡和地转平衡的等温大气，我们研究了重力波的传播特性，分析了地球旋转效应对重力波传播的影响，将模拟结果与线性重力波理论给出的结果及实验观测结果进行了比较。

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

In this paper, the flight states estimate project of the missile active phase based on moving-base gravity gradiometer is put forward. The real-time flight states of a missile are revised by using moving-base gravity gradiometer, measuring the gravity gradient of practical position and adopting the Kalman filter.

为此，提出了基于动基座重力梯度仪的导弹主动段飞行状态估计方案，利用动基座重力梯度仪测得的导弹实际位置引力梯度信息，采用卡尔曼滤波方法，修正导弹当前的飞行状态。

Gravity navigaton system have three elements: gravimeter, gravity map and the algorithm of matching localization of gravity.

重力导航系统有三个要素：导航用重力仪、导航用重力图和重力匹配定位算法。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。