查询词典 traffic density

Research results indicated that the underground biomass changes of three species differed obviously under different traffic treatment. Poa pratensis and Zoysia japonica underground biomass increased at the light traffic then declined. 'Barlexas' Tall fescue decreased with increasing traffic stress. Obvious root shallowing phenomenon is displayed through the increase of roots percent in surface layer and decline in deep layer. Moreover, traffic made the soil density and hardness increase.

结果表明：践踏胁迫下，3种草坪草地下生物量变化表现出较大差异，草地早熟禾和日本结缕草先增加后下降，高羊茅一直呈下降趋势；3种草坪草表层根系（0~5cm）所占比重明显增加，深层根系所占比重减小，根系的表层化现象明显；研究还表明，践踏使表层土壤容重和硬度增加，物理性质恶化。

State of visibility, traffic density and presence or not of fishing boats.

视线情况、交通密度、有无渔船。船的机动性和速度。。

A State of visibility, traffic density and presence or not of fishing boats.

视线情况、交通密度、有无渔船。船的机动性和速度。。

The reason is the increase of traffic density.

第五题问美国人认为交通事故减少的缘故是什么。

And ship traffic density etc.

以及海峡交通密度等。

The traffic density, the load and moving speed increase day by day, which attract much attention on the interaction of the vehicles and bridges.

交通密度的日益增加、荷载的逐渐加重以及车速的不断提高，使得车辆与结构的动力相互作用问题越来越受到人们的重视。

In case group, the area with low traffic density had the highest incidence and severity of upper airway symptoms.

在病例组，上呼吸道症状的发生率及严重度，以低交通流量地区为最高；而在对照组，以高交通流量地区为最高。

If the traffic density increases much above that, the flow pattern begins to become unstable.

如果车辆密度大幅高于上述数字，则车流模式开始出现不稳定现象。

The traffic density can be redncedi hence speeding up the flow of buses and cars.

通过这种方法，可以减小交通密度，因此公共汽车与小汽车的速度就可以提上来。

Input-layer contains seven nerve cells (sailor average maritime experience、average shipping years、average standard wind days、average river velocity 、visibility、water depth and traffic density) and output-layer contains four nerve cells (great accident、large accident、common accident and small accident).The test that use the data of historical occurrence level of maritime accidents in ChongQing water area is done, the result shows the feasibility of the predictive model.

最后本文用VC++制作界面，基于MATLAB的神经网络工具箱建立了水上交通事故的BP神经网络预测系统，采取三层BP神经网络，输入层有7个输入神经元(船员平均水上资历、平均船龄、平均标准风天数、水域平均流速、能见度、水深和交通密度)，输出层有4个神经元(重大事故、大事故、一般事故和小事故)，并通过对长江干线重庆水域的预测来检验模型的效果。

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。