场

As a result of the great decliner, the groundwater system's recharge, runoff and discharge have evolved from charactered with rain-evaporation to with exploitation; and the natural flow field charactered with flowing from piedmont to coastal plain have changed into the new charactered with exploitation, and of which groundwater decrease cones as the convergers.

水位大幅下降，使华北平原浅层地下水系统以降水-蒸发为主导的天然补径排方式演变为以人工开采为主导的新的补径排方式，从山前平原经中部平原向滨海流动的天然地下水流场演变为以开采为主导、以地下水水位降落漏斗为汇点的新流场。

This paper has given a thorough investigation into the application of BP neural network to gravitational density interface inversion as well as the implementation of wavelet theory in potential field decomposition and, on such a basis, analysed and evaluated the prospect of applying wavelet neural network to the inversion of gravitational and magnetic data.

重磁数据处理是地球探测与信息技术学科中重磁方法、理论在生产实践工作中的重要环节，其中反演问题和位场分离除了具备自身的作用外，两者并不是截然分开的。位场分离可以为反演问题提供更加可靠的先验信息，对提高反演精度具有一定的作用。反演问题是地球物理的核心问题。增

Based on the BISQ model, we studied the elastic wave speed in two-phase porous isotropic media and its relation with Biot-flow and squirt-flow. The Green function is obtained for a point load in the two-phase porous isotropic media using the decomposition of the field potencial and the properties of Delta function. The expression and effects of squirt-flow in BISQ-Green function are discussed.

以BISQ模型的波传播方程为基础，研究了弹性波在孔隙各向同性介质中的传播速度及与流体的Biot流动和喷射流动力学机制的关系，进一步利用场势分解和δ函数的性质，给出了同时受Biot流动和喷射流动两种动力学机制作用下，两相介质波场位移在集中力作用下的Green函数，并讨论了喷射流动在Green函数中的表现形式和作用。

It became clear to us that we were witnessing the aftermath of a massacre, the cold-bloodedbutchery of helpless and defenceless civilians.

这向我们清楚表明，我们在目击一场大屠杀后的残余，一场对无助无武装平民的冷血屠杀。

The conformal flat space-time solutions in electromagnetic and scalar theory are shown,and the indefiniteness of the plane-symmetric solutions and the method for defining a noncontinuous field by the intersection of multi-solutions are demonstrated.

文摘：给出电磁场和标量场在共形平直时空中的解，发现了平面对称解的不确定性及由多重解的交集来定义一个非连续场的方法。

During construction, typical sections are selected to carry out the temperature field test and the elevation of girder of T structure is measured synchronously. The changing character of temperature gradient and its 2 key parameters are generalized and the deflexion of"T"structure is analyzed in view of temperature field.

在施工过程中，选取典型断面进行了温度场试验，并对最大悬臂状态的T构主梁的线形进行了同步观测，总结了温度梯度及其两个主要参数的变化规律，将三维温度场问题简化为一维温度梯度问题。

Even as a wide-angle beyond 60 degs.

尽管视场很大（表观视场在60度以上），机械强度也合适，这类镜子的重量也不会超过800克。

It's an important and delicate match for us, as they all are.

这是一场重要和精彩的比赛，这几场都是。

Uventus-Inter is getting closer, two days and another important match will take place at Delle Alpi Saturday night.

UVE和国米的比赛越来越近了，两天后，周六晚上阿尔皮球场将进行一场重要的比赛。

Cavity flows both with and without sound excitation are studied by solving the 2 D time dependent Reynolds averaged Navier Stokes equations using explicit predictor corrector difference algorithm of Mac Cormack.

采用显式MacCorma－ck二步预估校正有限差分格式，求解二维雷诺平均非定常Navier－Stokes方程；并用Cebeci－Smith代数紊流模型作适当修正来模拟紊流效应，对有、无前缘声激励两种情况的空腔流场作了数值模拟，计算的振荡频率及振荡幅值都与实验结果基本符合，并且较好地模拟出了声激励对流场的影响。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。