查询词典 central divided difference

As for the diffusive term, it is shifted to undetermined time level to be discretized by divided central difference. The shifting error will be small for weak diffusion problems.

对于弱扩散问题，由于扩散系数比较小，这种转移引起的误差也比较小，从而可以期望得到更精确的数值结果。

The other city on Moscow and world is same, be in from Russia city in the transition process to world city, social become divided is quickened, the difference of other part in old central the city zone and city is increased.

莫斯科和世界上的其他城市一样，在从苏联城市向世界城市的转变过程中，社会分化加速，老的中心城区和城市中其他部分的差距加大。

Considering the difference of runoff characteristics on different underlying surface in the area of plain tidal river network, four kinds of surface is divided,namely, waters paddy field-, dry land and central urbanized area,and suitable method is adopted separately in each surface to simulate runoff process. Xinanjiang Model usually applicable for mountain areas is introduced to river network area, furthermore, the paper researches runoff calculation of central urbanized area, the underlying surface is divided into pervious and imperviousness areas.In perviousness areas, Hoton Infiltration formula and corresponding spatial infiltration rate curve are used to establish the relationship between infiltration rate and soil moisture in order to decide the infiltration. According to practical situation.

根据平原河网区城市下垫面产汇流方式的不同，分成水面、水田、旱地、城镇四类，分别采用相对应的产流汇流计算方法，将适用于山丘区的新安江模型引入到平原河网区城市，同时对于城镇这类下垫面，从下渗角度考虑，划分成透水和不透水两种类型，根据霍顿下渗公式和下渗率空间分布曲线，建立下渗率和土壤含水量的关系，进而研制出城镇透水面的产流计算方法，城镇汇流根据实际情况可结合城市管道排水计算。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。