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The mathematical model of complex countercurrent multi-effect evaporation with condensed water flash is established, which aims at minimum annual cost (including cost of fresh vapor, vacuum pump power, evaporator, maintenance and depreciation).Based on such decisive variables as the pressure of fresh vapor, the pressure of condenser and heat-transfer mean temperature difference of vari-effect,the model is solved by the complex method,Lagrangian multiplier method, iteration method and matrix method.The practical example indicates that the influence of the pressure of fresh vapor, the pressure of condenser and flash of condensed water on the optimum design results is notable.

建立了带有冷凝水闪蒸的复杂逆流多效蒸发系统优化设计的数学模型，该模型以整个蒸发系统的年总费用(包括加热蒸汽年费用、真空泵年动力费用以及蒸发器和辅助设备的年折旧维修费用等)最小为优化目标，以生蒸汽压力、冷凝器真空度及各效有效传热温度差为决策变量，提出一种新算法———复合形法结合Lagrangian乘子法、迭代法和矩阵法求解模型。

The price of freight market is the result of demand and supply.For disaccord of private cost and social cost,the optimal decision of a van's owner is not the optimal decision of social resources relocation,which is accompanied by overload of freight market.

我国货运市场运价是当前竞争性市场供求作用的结果，货运市场私人成本与社会成本的偏离，导致单个货运车主基于既定市场价格的最优决策实际是偏离社会资源配置最优的，并伴随现时屡禁不止的超限超载。

Total cost management is a new type of cost management theory, which is based on modern task accounting theory.

全面成本管理是建立在现代作业会计理论基础之上的新型成本管理理论。

In each cost expenses, the proportion that nutrient place holds is the largest, 70% what occupy the flesh to produce totle drilling cost with chicken, turkey, laying hen about.

在各项成本支出中，营养所占的比例最大，大约占肉用鸡、火鸡、产蛋鸡生产总成本的70%。

Place of traffic director branch belongs to shipping company especially transportation enterprises of inland river major not capture or default plan cost to wait, the operator that creates waterborne market cannot compete fairly in respect of tax cost burden.

交通主管部门所属航运企业非凡是内河专业运输企业未缴或拖欠规费等，造成水运市场的经营者在税费负担方面不能公平竞争。

By analysising cost and output for low yield oil wells, in the paper, the method of flow switch is used to judge if the well bore has the oil flows, which change the traditional experienced method (touch the beam hangers temperature and look if it has the oil film) and the present automatic liquid level monitoring manner, and it is the closed-loop control and reduce the intensity of labour and the cost of the production. The hill-climbing mathematical method is considered as the most effective way.

论文中采用了流量开关的方法判断井口是否出油，打破了传统用经验判断(看抽油杆是否发热、是否附有油膜)的方法和现有的自动液位监测仪判断方法，形成了闭环控制，降低了劳动强度和减少了生产成本；并将数学方法上的瞎子爬山法用在了本优化控制系统中。

Augustine surmised this was because (1) no one had the slightest clue as to how much a power plant should cost, but (2) everyone had an idea of how much a tool shed should cost.

Augustine推测，出现这种现象的原因在于：（1）没有人知道发电厂到底要花多少钱，（2）而每个人都会对一个工具棚的花费指手画脚一番。

Augustine surmised this was because (1) no onehad the slightest clue as to how much a power plant should cost, but(2) everyone had an idea of how much a tool shed should cost.

Augustine推测，出现这种现象的原因在于：（1）没有人知道发电厂到底要花多少钱，（2）而每个人都会对一个工具棚的花费指手画脚一番。

The tire case, in which the United Steelworkers union argued that a surge of Chinese tire imports cost American jobs, wasn't supported by tire makers, most of whom also make tires in China and had already abandoned making in the U.S. the low-cost tires in question.

美国联合钢铁工人工会认为，中国轮胎的大量涌入给美国工作岗位带来了冲击，但这一案件并没有得到轮胎制造商的支持，因为大多数制造商也在中国生产轮胎，并已经放弃了在美国生产此案涉及到的低价轮胎。

This method makes up the shortage of traditional decision network planning and makes the blue print choice more reasonable. Because this method comprehensively considers the six aspects of the project. The six aspects are duration ,cost, quantity, technique risk, strategy intention and maintenance. Second, it researched the calculation method of time parameters based on fuzzy triangle number of decision network planning. At last, it studies the fuzzy duration-cost optimization of decision network planning.This dissertation makes use of fuzzy theory to the decision network planning.

首先将模糊综合评判方法应用于决策节点方案选择，从工期、费用、质量、技术风险、战略意图和维护需求等六个方面全面比较各个备选方案，与传统网络计划在进行方案决策时只注重工期和成本两个方面相比，决策效果有所改善；其次，研究了采用模糊三角数表示工序工期情况下的决策网络计划时间参数计算方法以及模糊工期压缩等问题；最后，对模糊决策网络计划工期—成本优化方法进行了探讨。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。