In this paper , first , a theoretical expounding is given of the connotation , essential factors , characteristics & functions of agricultural industrialization , then a summary is given of the present condition of the management of the agricultural industrialization in the agricultural comprehensive project development zones in henan province . on this basis a further analysis is given on an aspects like the establishment of leading industries , hatching of key enterprises , adjustment of agricultural structure , operating mechanism and government actions . finally , the corresponding measures and relative policy and suggestions are put forward in view of the problems emerging in practice in the management of agricultural industrialization in the project development zones 本文首先阐述了农业综合开发项目区农业产业化经营的背景，并以交易费用理论、比较效益理论以及平均利润理论为基础，阐明了农业产业化经营的内涵、特征和功能；然后根据实践总结出河南省农业综合开发项目区农业产业化经营的现状，并在此基础上，对项目区农业产业化经营中的主导产业的确立、农业结构调整、龙头企业的培育、运行机制、政府行为等方面做了进一步的分析；最后针对项目区农业产业化经营在实施过程中出现的问题，提出了相应的措施以及有关的政策建议。
Social average exploration cost required by obtaining oil / gas reserves is taken as fundamental price for measured reserves , and this model adopts addictive average profit on the basis of social average exploration cost and differential prices in different production conditions as price of oil / gas reserves 模型以获得油气储量所需花费的社会平均勘探成本作为确定储量的基本价格，在社会平均勘探成本的基础上附加一定的平均利润和由于开采条件不同造成的级差价格，来作为油气储量的价格。
From the birth of the chinese stock market , fixed commission rate system had played a vital role in the stock brokerage . as a new floating stock commission rate system came into effect on may 1 , 2002 , the brokers have to face the new environment in which the profit rate will be very low . and after china join the wto , the big names from abroad will also take part in the competition in domestic stock market 浮动佣金制度的实行，宣告了我国证券行业将彻底告别新中国证券市场创建以来赖以生存的“固定佣金制”温床，证券行业的社会平均利润或微利时代已经到来；同时随着加入wto后的证券市场开放，国外实力雄厚的证券商将参与国内证券市场的竞争。
The implementation of the new commission system , has declared " regular commission " hotbed on which new china ' s securities market depended from it was established to now will say good - bye to us , this not merely indicates that the securities trader makes the social average profit or the arrival of times of the meager profit , and indicate that the securities trade will shuffle again in the keen competition day by day 新佣金制度的实行，宣告了我国券商将彻底告别新中国证券市场创建以来赖以生存的“固定佣金制”温床，这不仅预示着券商取得社会平均利润或微利时代的到来，而且预示着证券业将在日益激烈的竞争中重新洗牌。
In outside , the dissertation indicated guangxi should choose the leading industries of leading enterprises around their five economic areas ; analyzing the theoretical foundations that the peasant in guangxi is impossible to achieve average profit with the leading enterprises , and proposing the principle and concrete way of interest allocation between the leading enterprises and peasant household in guangxi further 在外部方面，指出了广西应围绕其五大经济区域来选择龙头企业的主导产业；分析了广西农户不能取得平均利润的理论依据，并进一步提出广西龙头企业与农户利益分析的原则和具体方式。
This paper develops a deterministic inventory model for perishable items with a mixture of back orders and lost sales under inflation and time discounting , where the backlogged demand rate is dependent on the negative inventory level during the stock out period . the main differences from the existing related models are that the present model takes the maximum present value of profit in a repeatable order cycle as the objective function and proposes a more practical constraint of maximum customer - waiting time to ensure a proper customer service level . then the existence and the uniqueness of the solution to relevant systems are examined and a solution algorithm is shown to find the optimal replenishment policy . at last , some numerical examples are presented to illustrate the applicatioh of the model 本文建立了一种考虑通货膨胀与时间价值的变质性物品的库存模型,在模型中允许短缺发生且拖后的需求速率与在缺货期间已经发生的缺货量有关.和已有相关模型的主要区别在于本模型把一个可重复的订货周期内的最大平均利润的净现值作为目标函数,且增加了在缺货期间最长顾客等待时间的限制,以确保库存系统拥有较高的服务水平.然后讨论了模型最优解的存在性与唯一性,并提供了寻求模型整体最优解的算法.最后用实例说明了此模型在实际中的应用
