强制程序遵守系统约束。
将系统约束分为基本约束和条件约束，建立了变拓扑结构柔性多体动力学模型。
Classifying the system constraints as basic constraints and variable constraints, a model of flexible multibody with changing topologies is developed.
安全带中限力器、预张紧器、织带的性能参数是影响车辆安全带系统约束性能的主要因素。
Load limiter, pretensioner and strap of a safety belt are primary factors which affect its protecting performance.
仿真结果表明：与卡尔曼滤波方法相比，MHE方法能处理系统约束，具有比卡尔曼滤波更好的估计性能。
The simulation results show that MHE can solve the constrained linear system and has more effective estimation performance compared with Kalman filter strategy.
比起更广泛且更一般的记录类型，它们还表现出对变更管理系统的维护者更少的约束。
They also present fewer constraints to the maintainers of the change management system than broader and more generic record types.
当利用现有的基础架构或集成遗留系统时，必须考虑到这些约束。
These constraints must be taken into consideration when leveraging existing infrastructure or integrating legacy systems.
例如，假设由于测试系统上的内存约束，您无法获得大型的缓冲池，并且希望将大小配置得相同，实际上却不是真正有这么大。
For example, say that you cannot afford to have large buffer pools due to memory constraints on the test system and would like to configure the size the same without actually having them in reality.
处理这些约束以及其它在系统开发进行中所出现的是一个发现过程。
Addressing these constraints and others that manifest themselves as system development proceeds is a discovery process.
当定义一个主键约束时，联邦系统自动创建一个惟一的索引规范。
When a primary key constraint is defined, the federated system automatically creates a unique index specification.
做出这些更改将消除该用户ID 的某些系统资源消耗约束。
Making these changes remove some system resource consumption restraints for the user ID.
通常，由于资源利用率和应用程序更改灵活性的限制，源系统受到了一定的约束。
Often, the source systems are constrained because of resource utilization and the limited flexibility for application changes.
清单5和6显示了从数据库系统中返回的失败的约束示例。
Listings 5 and 6 show sample constraint failures returned from the database system.
混合模式的存在是为了保留回溯相容性，但混合模式限制了系统对旧版软体约束的使用。
Mixed mode exists to maintain backward compatibility. However, mixed mode limits the system to the constraints that are imposed by earlier software releases.
首先，您需要验证需求以确保它们按最初预期的那样正确工作，并假设系统上下文的约束还没有变化。
First, you validate requirements to ensure they work properly as originally intended, assuming that constraints on system context haven't changed.
该框架响应系统上下文、目标、约束和风险方面的重大更改而重复执行流程。
It repeats the processes in response to major changes in system context, goals, constraints, and risks.
需求通常是客户指定的关于系统实现的行为约束。
Requirements are typically customer-specified behavioral constraints on the implementation of a system.
对环境高度约束的项目，比如，嵌入式系统，确保您考虑到了环境约束条件。
Projects for highly constrained environments, such as embedded systems, to make sure that you consider the constraints with that environment.
例如，约束可能是设计将在现在系统上使用关系数据库或者接口。
For example, a constraint might be that the design will use a relational database or interface to an existing system.
如果它没有被指定，系统会使用一个全约束名称。
If it is not specified, the system USES the fully qualified constraint name.
约束机制可以是XML模式、类型系统甚至自定义的程序代码。
A constraint mechanism can be an XML schema, a type system, or even some custom programming code.
还可以定义其他技术作为约束机制，如模式或类型系统，甚至可以定义自己的自定义约束解决方案。
You can also define other technologies as constraint mechanisms, such as schemas or type systems -- you can even define your own custom constraint solution.
例如，在清单5中，一个选项被约束到文件系统的特定部分，重写也可以是有作用域的。
For example, in Listing 5, where an option is restricted to a certain part of the file system, overrides can also be scoped.
在这个系统的约束下，如果农夫们被发现砍伐树木将得到严厉处罚。而为了避免麻烦，农夫们经常将刚刚发芽的树木连根拔起。
Under this system, farmers were punished if they were caught cutting trees, so to avoid hassles they often uprooted seedlings as soon as they sprouted.
“什么”是系统，功能需求“如何”，“重要商业约束”是补充需求，“期望结果”是用例的产出物。
The "what" is the system, the "how" is the functional requirements, the "business-critical constraints" are the supplementary requirements, and the "desired results" are products of use cases.
此项计划侧重于重大风险，包括：超速；酒后驾驶；使用移动设备分散注意力；不系安全带、不戴头盔以及不使用儿童约束系统。
The plan focuses on the big risks, including speeding, drinking and driving, inattention while using mobile devices, and failing to use seat-belts, helmets and child restraints.
因为没有人了解这些系统，所以有时候就使用规则约束禁止进入整个系统；但是仍然需要对这些系统进行维护。
Entire systems are sometimes ruled off-limits because no one understands them; yet these systems still need to be maintained.
如果未满足系统的时间约束，则认为系统失效。
If the timing constraints of the system are not met, system failure is said to have occurred.
从理论上说，您最多可以创建8192个zone；然而，它们必须由系统中的其他约束来决定。
In theory, you can create up to 8192 zones; however, they are determined by other constraints on the system.
从理论上说，您最多可以创建8192个zone；然而，它们必须由系统中的其他约束来决定。
In theory, you can create up to 8192 zones; however, they are determined by other constraints on the system.
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