近似法

The time interval between two discrete instants is taken to be sufficiently short so that the data for the time between these discrete instants can be approximated by simple interpolation.

两个离散时刻之间的时间间隔应取得足够短，时刻之间的时间间隔应取得足够短，以使这些离散时刻之间的数据可以用简单的插值法来近似。

When the disturbing potential of 1m2/s2 accuracy, or the approximate velocity of accuracy less 2mm/s in the formula of the rotation of the gravity potential is required, the satellite orbit data not satisfied the potential rotation computing demand are rejected from the GFZs Rapid Science Orbit and TUMs ReducedDynamic Orbit. If the disturbing potential is desired 05m2/s2 at satellite track, the satellite velocity required in formula of the rotation of the gravity potential should be recomputed or the GFZs Postprocessed Science Orbit is adopted.

当要求在卫星轨迹处获得1m2/s2精度的扰动位时，也即要求位旋转效应公式中卫星速度的近似精度小于2mm/s时，GFZ的快速科学轨道、TUM的约化动力法轨道只需要剔除那些速度精度不满足要求的卫星轨迹点；当要求在卫星轨迹处获得05m2/s2精度的扰动位时，应当重新估算上述轨道的速度信息，或采用精度更高的GFZ事后科学轨道。

Angular Momentum Algebra, Addition of Angular Momenta, Identical Particle Effect, One Dimensional Periodic Quantum Systems, Introduction to Quantum Statistical Mechanics, Time-independent Perturbation Theory, Fine Structure, WKB Approximation, Variational Principle, Aharonov-Bohm Effect, Quantum Transition.

量子力学( S0583)(0，3)角动量代数、角动量加成、等同粒子效应、一维周期性量子系统、量子统计简介、定态微扰理论、精细结构、 WKB 近似、变分法、 Aharonov-Bohm 效应、量子跃迁。

Compared to nearest neighbor , it shows better effects of the correct association rate and association time.

它以一个目标为中心的近似聚为构造关联事件的起点，并在计算中将DC 和AC 结合得到的一种全邻的点迹2航迹关联算法，在杂波下目标密集、航迹复杂的数据融合系统中进行实验，对关联正确率、关联时耗等与最近邻法进行了比较，效果较好。

The energy method is applied to derive the natural vibration frequency and mode shape for a simply supported beam and simply supported plate before and after damage.

利用能量法近似地得出了损伤前和损伤后简支梁和四边简支板的自振频率和振动模态。

The four Stokes components of brightness temperature and emissivity are solved using the high-order small perturbation method.

该模型基于二维粗糙海面上场的高阶微扰法展开近似，得到了4个发射率分量及亮温的高阶微扰解。

Based on the theory of cosine crossing point, the combination of three-sector approximate cosine crossing point and regulation sampling to compute trigger angle on line was given.

根据余弦交点法的原理，提出了三段近似余弦同步波和规则采样结合的一种在线计算触发延迟角的方法。

For a kind of nonlinear dynamic absorber of blade out of plane, the combination resonance is studied in Chapter 6 by using the method of multiple scales. The approximate steady state solution of the first order is derived first Then, the stability and bifurcation properties of the system response are investigated.

我们针对一种桨叶挥舞方向的非线性动力吸振摆，利用多尺度法考察了它发生组合共振的情形，给出了系统响应的一阶近似稳态解，并且详细分析了系统响应的稳定性和分叉特性。

The image pyramid is obtained by using the wavelet transform, and then we do the registering work at each level of the image pyramid. And the image grade method is applied at the coarsest level of the image pyramid, while Mutual information registration method can be performed at the rest of levels with the result at the pervious level serving as the initial condition.

通过小波变换构造图像金字塔，在每一层的平滑逼近分量上进行图像配准，并在金字塔最高层的近似图像上使用了梯度法进行图像配准，而在其余层上继续使用基于互信息的配准方法。

But the study of non-well-distributed substance of differency in nature in every direction has been ignored in the approximate solution of Voigt and Reuss, and as a result, it is not a overall conclusion.

针对各向异性非均匀体，采用变分法及能量极值原理进行分析，得出了一个比Voight -Reuss和Hashin -Shtrikman上、下限近似解更为精确和合理的上、下限计算公式

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。