查询词典 space model

In order to find out completely the soil-wheat contaiminated by heavy metals in Tianjin sewage farm, we collect samples on the dry land and examinate contents of heavy metals in soil-wheat system. Firstly, the anthor evaluates that soil irrigated by sewage that has been contaminated slightly, the main polluting factors are Cd and Zn, and then the anthor evaluates soil according to different regions, soil types and irrigating water. Secondly, the anthor analyzes content and enrichment ability of heavy metals in different part of wheat, evaluates wheat is contaiminated by Cd widespreadly, only few samples polluted by Zn.Finally the anthor put up correlative analysis about heavy metal contents in the soil-wheat system, as well as plant enrichment coefficient and some physico-chemical properties of soil, and establishes a prognostic model about heavy metal content among wheat spike, soil, soil types, PH, organic matter and salinity with the quantifying theory.The prognostic accuracy of primarily contaminative factors is the best with compound correlative coefficient examining, the model can be founded.With improvement of living level, people need cleaner food.

为全面了解天津市污灌区农产品生产地土壤和旱地作物小麦的重金属污染状况，我们于2004～2005年对全市污灌区的土壤和小麦进行了采样，在对该区土壤—小麦系统中六种重金属元素(Cd、Cu、Pb、Zn、Cr和Ni)的含量进行检测的基础上，本文首先分析评价了污灌区农田土壤的环境质量总体已达到了轻度污染水平，主要的污染因子是Cd和Zn，同时对污灌区农田土壤分区县、土壤类型和不同灌水类型进行了评价；然后分析了重金属在小麦不同部位的含量与富集能力，评价了污灌区旱地作物小麦普遍遭受了Cd的污染，只有个别样点遭受了Zn的污染；最后对土壤—小麦系统重金属含量间以及植物富集系数与土壤部分理化性质间进行了相关分析，由于土壤类型是定性变量，本论文以数量化理论建立了小麦穗实中重金属含量与土壤中重金属全量、土壤类型、PH值、有机质和全盐量间的预测模型，经复相关系数检验，污灌区主要的污染因子Cd和Zn的预测精度最高，模型可以成立。

This model offers exceptional value with prices starting from ￡24,310 for the 2.4 (170PS) model.

这款车的售价为24310英镑（约合人民币37.07万元）。

We discuss the model, presentsome properties of the model, and show the existence theorem of the solution.

分析了模型的基本性质，证明了解的存在性。

Through research we proposed an integtated model of organizational performance, which included an exogenous variable (market-oriented culture), and a mediating variable, and a moderating variable was taken in and analyzed in this model, and finally we gave some advice on the future.

提出了以动态能力为中介，以市场导向文化为外源变量的企业绩效整合模型，同时将环境不确定性作为调节变量引入该模型进行分析，并对今后的研究进行了展望。

Experimental result proves that the effectiveness of the model, and the model system has good expansibility and stability.

实验结果证明了该模型的有效性，且模型系统具有较高的可扩展性和稳定性。

Compared with the data provided by the standard graphs and tables of refrigerant thermodynamic properties, the calculation results of this model have certain precision and meet the expectative requirements.Second, a general dynamic distributed model of heat exchangers in automobile air conditioning system is constructed.

建立了具有良好通用性的汽车空调系统换热器分布参数动态模型，并基于流体质点追踪计算思想完成了相应的计算机仿真软件。

In this dissertation by analysis and comment we point out that though the current model of accounting supervision to SOE makes some progress in contrast with the traditional model, there still exist lots of problems. For example, the accounting assignment system doesn't coordinate with the modern enterprise institution and contradict with corporate law of PRC. The timeliness of supervision by CFO with double roles and assigned expediter (board of supervision of external assignment) is not obvious. The crux is that the assignment of decision maker and supervision-and-binding principal is unreasonable.

本文在对我国现行的国家出资者对国有企业会计监督的各种模式（包括会计委派制、财务总监委派制、稽察特派员或外派监事会制、财政监察专员制度、国家审计和社会审计等）进行分析评说后指出，虽然现行模式比传统的国有企业会计监督有了一些突破，但是仍然存在不少问题，表现在会计委派制与现代企业制度之间的不相协调、与《公司法》规定冲突、财务总监的双重身份及稽察特派员监督时效性不强等。

The results show that the explanatory variable in the model are highly significant, and the model is stable and reliable.

结果表明，模型中的解释变量具有很强的显著性，模型稳定可靠。

It was applied to model and predict the variables of the mycetozoan fed-batch process. The result has shown that the structure of this kind of neural network model is simple, explicable and the convergent speed is much quicker.

为此，结合模糊粗糙集和智能控制的理论，充分利用模糊粗糙集和神经网络两者的优点，提出了一种新型的网络—模糊粗糙神经网络实现对发酵过程的建模和状态估计。

Based on the theory of tidal flow and sediment motion, a 2-D depth-integrated mathematical model for the Jiaojiang Estuary is developed by using explicit scheme of finite difference on the triangle elements. The results show that the rotary currents occurring in this area can be simply and effectively simulated by the model. Meanwhile, the suspended sediment concentration simulated is in agreement with the field data.

本文根据椒江口实测水文地形资料，从平面二维水流泥沙基本方程和基本理论出发，采用三角单元有限差分法对水流泥沙方程显示求解，对椒江口潮流泥沙进行了数值模拟，模型简单实用，较好地再现了具有旋转潮波性质的椒江河口水流运动特征，含沙量场也得到了基本正确的反映。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。