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Joint urban operations involve a variety of unique operational considerations such as extensive man-made construction, large noncombatant populations, and complex sociological, political, economic, and cultural interactions within those populations.

城市联合作战行动有许多需慎重考虑的要点，诸如城市中面积宽广的人造建筑，大量的非武装人员，以及当地人口中的复杂的社会，政治，经济和文化因素。

There was a positive correlation between the level of genetic diversity and the outcrossing rate of weedy rice populations, indicating that the introgression from cultivated to weedy rice may enhance the genetic diversity of weedy rice populations.

辽宁省六个地区杂草稻的遗传多样性水平从低到高的顺序与杂草稻发现时间从早到晚的顺序非常相似，据此推测杂草稻的遗传多样性水平可能与治理杂草稻的强度和时间有关系。

Genetic polymorphism and aggregation of seven sheep populations, including three breeding sheep populations (breeding F1, F2 and Bamei mutton sheep), three introduced mutton sheep breeds (Texel, Dorset and German Merino sheep) and one local female parent population, were assessed using 10 microsatellite markers.

方法］利用10个微卫星标记对3个选育绵羊群体（选育级进1代、级进2代、巴美肉羊），3个引进肉羊品种（德克塞尔、无角道塞特、德国美利奴）和1个当地母本群体进行微卫星标记鉴定，分析这7个绵羊群体的多态性和遗传聚集性。

The verification are made for China's populations, some Provinces and Country populations with good agree, the results indicated that the population is affected strongly by the power exponent and the associated characteristics of growth of the population are discussed.

本文研究结果表明，由改进的具有幂律指数型的逻辑斯蒂人口增长模型所描述的人口增长规律和实际普查人口分规律布非常接近，可以用来比较准确的描述某段时间内的人口增长规律以及预测未来一段时间内的人口增长趋势。

In the solution process the initialization two populations, separately will select the different overlapping variation probability, after each time will iterate the sufficiency high individual carries on the first populations in sufficiency low individual with the second population in the exchange, and will preserve each center group the optimal solution to the outstanding person population, by will solve the tradition genetic algorithms to be easy to appear precociously, will be easy to fall into the partial optimal solution question.

即在求解过程中将初始化两个种群，分别选取不同的交叉变异概率，在每一次迭代完后将第一个种群之中的适应度较低的个体与第二个种群中适应度较高的个体进行交换，并且保存每个种群的最优解到精英种群，以解决传统遗传算法容易出现早熟，容易陷入局部最优解的问题。

Principle component analysis revealed that ten populations were almost overlapped each other in scatter diagram of PC1 and PC2, indicating small morphological variations among ten populations.

提示天津厚蟹和侧足厚蟹有可能交配并产生后代，从另一个方面表明，天津厚蟹和侧足厚蟹可能是同一个物种。

Further research will be carried out in the future.5 Analysis of growth traits and molecular genetic bases of hybrids between two different populations of M. meretrix5.1 The growth traits in early period were analyzed on self-reproducing and hybridized stocks crossing with S and J populations of M.

研究结果表明，山东文蛤和广西文蛤应该同属于Meretrix meretrix，而白壳文蛤肯定不是Meretrix meretrix；那么白壳文蛤到底应该划归文蛤属中的丽文蛤M。

The results showed that the average heterozygosity was higher in 9 populations,the lowest is Jinding, the highest is San sheldrake, which ranged from 0.5137~0.6055. The average heterozygosity of 9 duck populations was 0.5523, which reflected the rich diversity. Considerable breed differentiation was observed and 25.65% of the total genetic variation came from breed differences, this result affirmed each breed was of own genetic diversity. The DA genetic distances suggested the longer differentiation existed between those breeds. The domestic duck breeds in East China were clustered into four groups based on the NJ clustering, the clustering results had some relationship with the distributions and economic utilizations of these duck breeds.

结果表明：9个品种的平均杂合度都较高，最低的为金定鸭，最高的为山麻鸭，杂合度范围为0.5137～0.6055，群体平均杂合度为0.5523，反映了各鸭种的杂合度都较高，遗传多样性丰富；华东区各鸭种间存在较大的遗传分化，25.65%的遗传变异来源于品种间的差异，更进一步反映了各品种具有本品种特征特性的多样性；通过计算DA遗传距离发现各群体的遗传距离较远，分化时间较长；NJ聚类结果将华东区家鸭资源聚为4类，NJ的聚类结果分析与几个鸭品种的地域分布和经济用途有一定关系。

The experiments with water as only limiting factor was designed to study the dynamics of size inequality in spring wheat ( Triticum aestivum L.)populations and its theoretical basis.Of the three densitywheat populations,the skew of weight distribution of wheat plants increase with time,and the increase rate is the highest in high density population.

在黄土高原半干旱生态条件下设置了低、中、高3个密度梯度的以水为限制因子的实验，各密度种群个体重量分布偏倚度随时间的延续而增大，增大的幅度随密度增高而上升。

Also has Americas super city populations and so on chain New York, San Francisco, Mexico City, Rio de Janeiro also surpasses 100,000,000, these cities put together have held the world 60% populations nearly, except this was some ancient medium cities and the crystal palace same seabed city, outside the city region is the broad land uniform farms respectively and the cover forest, humanity's survival environment already obtains the huge restoration and the improvement.

还有美洲超级城市链纽约、旧金山、墨西哥城、里约热内卢等人口也均超过一亿，这些城市加在一起几乎容纳了世界百分之六十的人口，除此就是一些古老的中等城市和水晶宫一样的海底城市，城市以外的区域就是广阔的土地整齐划一的各种田地和茂密的森林，人类的生存环境已经得到巨大的恢复和改善。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。