需求描述了所有产品功能，并且定义了实现这些功能的约束条件。
The requirements describe all the product functions, as well as the constraints under which these functions should be realized.
通过分析系统必须满足的需求和约束条件，我们可以很方便地开发一些模型去呈现系统。
We facilitate the development of models that represent systems based on the analysis of requirements and constraints that the system must fulfill.
看空者认为，在黄金市场需求原因和供应约束条件没有发生重大变化的情况下金价仍然如此之高完全违背逻辑。
It defies logic, say the bears, that its price should remain so high without any fundamental change in the sources of demand or constraints on supply.
已知现有系统的约束条件，只考虑纯粹的业务需求很可能产生不实际或不可能实现的服务定义。
Considering only pure business requirements is likely to result in service definitions that are impractical or impossible to implement, given the constraints of existing systems.
文章分别分析了路内停车需求影响因素和路内停车供给约束条件，并把这些因素进行了量化。
This paper analyzes the influence factors of curb parking demand and the constrained factors of parking supply, and these factors are all measured.
活动属性包括活动编码、先行活动、后续活动、逻辑关系、提前量和滞后量、资源需求、强制日期、约束条件和假设条件等。
Activity attributes include activity codes, predecessor activities, successor activities, logical relationships, leads and lags, resource requirements, imposed dates, constraints, and assumptions.
软件使不同的系统约束条件和用户需求得到满足的容易程度。
The ease with which software allows differing system constraints and user needs to be satisfied.
科尔奈效应指出，企业预算约束条件不同其要素需求弹性亦不相同，软预算约束的存在会导致企业的要素需求弹性降低，要素需求量增加。
Kornai Effect shows, input demand elasticity is different between enterprises with different budget constraints and soft budget constraint causes an increase in input demand.
利用该模型，企业可以在满足顾客基本补救需求的约束条件下，制定出成本最优的补救策略。
Under the condition of satisfying the basic recovery demand of customers, corporate can design the cost-optimized recovery strategy with this model.
当加入直销价格不小于批发价格的约束条件后，在更小的需求分配比例范围内能够找到均衡解。
When the direct price is not lower than the wholesale price, an equilibrium solution can be found even if the market share is smaller.
但需求价格弹性与总收益的这种关系有一定条件约束，不满足这个约束条件，需求价格弹性与总收益之间就不具有如上关系。
And the total revenue can be increased if the price of a inelastic demand goods is raised, and vice versa. But the relation between the price elasticity and total...
但需求价格弹性与总收益的这种关系有一定条件约束，不满足这个约束条件，需求价格弹性与总收益之间就不具有如上关系。
And the total revenue can be increased if the price of a inelastic demand goods is raised, and vice versa. But the relation bet...
但需求价格弹性与总收益的这种关系有一定条件约束，不满足这个约束条件，需求价格弹性与总收益之间就不具有如上关系。
And the total revenue can be increased if the price of a inelastic demand goods is raised, and vice versa. But the relation bet...
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