It provides three automobile developing models which are suit to requirements of long - term technological plan of our automotive industry ; constructs mathematical models about exhaust and energy consumption , and calculates the exhaust lists of three cities and the energy lists both in 2010 and in 2030 based on comprehensive analyses of every related factor ; provides reasonable suggestions about the ev industry development of our country by contrasting the policies of developing the ev about foreign developed countries ; finally , establishes relevant countermeasures by analyzing the developing environment in hubei province 通过对我国汽车产业发展战略方位的分析，提出了适合我国汽车工业中长期技术规划要求的三种发展模式；通过建立汽车排放和燃油消耗的数学模型，对汽车保有量，各种车型百分比、年平均行驶里程，汽车排放因子等各种相关因素的分析分别计算出2010年和2030年的汽车燃油消耗清单和选定的三个典型城市的汽车排放清单，论证了我国发展电动汽车的必要性；同时对世界发达国家发展电动汽车的相关政策作了比较详细的分析，通过对比比较并借鉴发达国家在电动汽车产业化及商业运行支撑政策等方面的经验，提出适合我国电动汽车产业发展的相关支撑政策。
At the same time , the economic is developing , the traffic equipment in city , especially the recoverable amount of the automobile is increased rapidly , but because the elastic coefficient that the area of the road of area that builds up city increases is very small , the city road was built and has not slowed down the traffic pressure in the city very well , this kind of pressure has brought very big restriction to development of the city 同时随着经济的发展，城市机动化设备，尤其是汽车的保有量迅速增长，但由于城市建成区道路面积增加的弹性系数甚小，城市道路建设并没有很好地减缓城市交通压力，这种压力给城市的发展带来了很大的制约。大运量、准点、占地面积小、污染少的轨道交通为解决城市交通、土地利用以及城市的协调永续发展提供了有效的解决途径。
The construction of the expressway needs high - quality a large number of to accord with the pitch which standardize the request , a large number of expressway recoverable amount is expected much too , and of our country petroleum refine technological level there is sure disparity compared with advanced country ' s level in the world , performance its difficult to meet fast , heavily loaded traffic and different climate request of terms , so in situation have heavy change and educational level have heavy prerequisite of improvement , can only rely on import under prerequisite that import volume increases fast year by year , pitch of our country , , import to our country pitch get the new demand out of in purchasedding , transported , supplied etc . , and dimple a lot of and ca n ' t meet the new situation , respect of the new demand from it 高速公路的建设需要大量优质符合规范要求的沥青，大量高速公路保有量也要求大量的养护沥青，但由于我国油源的特点大多含蜡量较高，且我国石油炼制工艺水平与世界先进国家水平比还有一定的差距，其性能难以适应快速、重载交通及不同气候条件的要求，因此，在形势没有大的改变和文化水平没有大的提高的前提下，只能依靠进口。在我国沥青进口量逐年快速增加的前提下，对我国进口沥青在采购、运输、供应等方面提出了新要求，而从中也现出许多不能适应新形势、新要求的方面。
The total amount of land for construction uses in the general plans of land use compiled by local people ' s governments at all levels shall not exceed the controlled targets set in the general plans for land use at the next higher level and the total amount of cultivated land should not be lower than the controlled targets set in the general plans for land use at the next higher level 地方各级人民政府编制的土地利用总体规划中的建设用地总量不得超过上一级土地利用总体规划确定的控制指标，耕地保有量不得低于上一级土地利用总体规划确定的控制指标。
We have combined qualitative analysis and quantitative analysis to foresee the market size . firstly , we found the relative factors influencing the truck market through qualitative analysis and picked up several main factors by quantitative analysis , such as highway mileage , social fixed assets investment capital and consumption expenditure , etc . secondly , we set up four models by using those factors . the four models are a time series model , a multiple regression model , a factor regression model and an integrated model 首先,通过定性分析找到了影响我国载货汽车保有量的相关因素,接着又进一步进行定量的分析,从而确定了公路里程数、基本建设固定资产投资额和我国社会消费支出额等为主要影响因素;然后,利用前面的分析结果构造了三个模型,即时间序列模型、多元回归模型和因子回归模型,并综合几个模型的优点建立了一个综合的预测模型,这一部分也是全文的重点部分;最后,分析比较了各模型的优劣并给出了每个模型的适用情况。
On the basis of analyzing the main characters of empty container allocation system and referring to the depending on personal experience actuality of empty container management of china shipping companies , this thesis detected the essential factors , that is , demand port and supply port , demand and supply of empty containers , stocks of empty containers , leasing containers and counting period of empty container allocation system , which mostly affect the empty container allocation system and confirmed the main purposes of the empty container allocation system 本文在分析空箱分派系统的随机性、动态性、复杂性和时间空间限制型等主要特征的基础上，结合我国船公司集装箱空箱分派依靠人为经验管理的现状，找出了在空箱分派系统中起关键作用的基本要素? ?供给港和需求港、空箱需求和供给、空箱库存保有量、空箱租赁、空箱分派系统计算期等，确定了空箱分派系统要实现的主要目标，即船公司收益和托运人满意度。
