prem

Periodic variations of the earth rotation calculated with the Prem parameters

由PREM模型参数计算地球自转的周期变化

In addition , the Love 's numbers and t'dal factors for the PREM are also calculated .

同时，对PREM模型计算了勒夫数及潮汐因子。

Tidal perturbation of geopotential coefficients of second order based on the Prem rheological parameters

基于PREM的地球引力势二阶系数的潮汐摄动

The earth 's ellipticity and its first and second derivatives versus radius based on Prem earth model

基于PREM模型的地球椭率及其一、二阶导数沿径向的分布

Love numbers calculated with prem

由PREM地球模型计算的洛夫数

Q.Can I just select the NF Prem option for the Gold and Silver prizes and avoid the drawing ?

我可以选择跟金银奖等值的游戏中物品而避免抽奖吗？

Nick Webster : the voice of the EPL on Fox Soccer Channel writes about the Prem every Monday .

尼克·韦伯斯特：福克斯足球频道英超首席写手。

The consortium is led by Prem Watsa 's Fairfax Financial Holdings , which holds a 10 per cent stake in the Ontario-based company .

这家财团由普雷姆•沃察（PremWatsa）的FairfaxFinancialHoldings牵头。该公司持有总部位于加拿大安大略省的黑莓公司10%的股份。

Our result is almost consistent with frequency of the modes of preliminary reference earth model ( PREM ) . The inconsistent modes of spheroidal and toroidal free oscillation may result from lateral heterogeneous or / and anisotropic media of the earth .

频率与PREM模型略微不一致的球型或环型振荡可以解释为地球介质的横向不均匀性和各向异性所致。

This result is very much identical with the theoretical Q result of 69 under visco-elastic PREM model . It shows that parameter resonance model is exactly appropriate with the visco-elastic theoretical model . The long time tendency of Chandler wobble is figured out .

这一结果与Q的滞弹性PREM模型理论值69十分接近，表明共振激发模型和参数共振模型完全与钱德勒摆动滞弹理论相容。

Based on the preliminary reference Earth model ( PREM ), the deformation theory for a spherically stratified and non-rotating Earth with perfectly elastic and isotropic structural relation ( SNREI Earth ) is employed to investigate the deformation characteristics of the Earth under different forces .

基于PREM模型，利用非自转、球型分层、各向同性、理想弹性（SNREI）地球的形变理论，讨论了地球在不同驱动力作用下的形变特征。

Based on the preliminary reference Earth model ( PREM ), The 4th order Runge-Kutta numerical integration technique was used to compute the Love numbers for the surface loads , body tides and internal loads . The spatial distribution and the frequency dependence of the Love numbers were investigated .

基于PREM地球模型和4阶Runge-Kutta数值积分方法，解算了表面负荷Love数、体潮Love数和内部负荷Love数，探讨了不同Love数的空间分布特征及与信号频率依赖关系。

By the PREM earth 's model , the influence of the inner core to the vibration range of nutation is checked . The main solution is that the inner core has effects to the main nutation terms in 0.1 mas , which is coincided with recent observation precision .

通过PREM地球模型检测了内核对章动振幅的影响，由此发现内核在亚毫角秒量级上影响主要的章动项，它和当今的观测精度是一致的。

We inferred here that genotypic variation existed in preM region of all mutant viruses and that genotypic variation of protein encoded by preM region may play a role in persistent infections and may contribute to the maintenance of the characters of Japanese encephalitis virus and replication .

认为乙脑病毒持续感染变异株preM区存在基因变异，这种变异可能与该区参与病毒持续感染及维持病毒生物学特性有关。