冰就是一个我们熟悉的约束系统的例子。
几何约束系统可以分为陈述式和构造式两类。
Geometric constraint systems can be divided into two categories: declarative and constructive systems.
研究了单面完整约束系统的对称性与守恒量。
The symmetries and conserved quantities for the systems with unilateral holonomic constraints were studied.
建立了正面碰撞乘员约束系统的模型并经试验验证。
A model for occupant restraint system in frontal crash is developed and validated by test.
对乘员约束系统进行碰撞工况识别的控制策略研究。
A study on the control strategy for vehicle impact identification of occupant restraint system is conducted.
利用该模型对乘员安全约束系统的优化问题进行了研究。
A research on optimization of occupant restraint system has been done.
专家认为，儿童安全坐椅应该成为儿童乘车的必备约束系统。
Experts think, child safety sit chair should become the necessary restraint system by children.
其次，提出结构优化的原则、意义和约束系统结构优化的条件。
Secondly, the structural optimization principles, meaning and restraint of the system structure optimization conditions.
有干预的商店中的购物车安全约束系统的使用要比对照商店要多。
The increase in safety-restraint use in shopping carts was greater in the intervention stores than in the control group of stores.
汽车乘员约束系统的优化涉及到安全带、安全气囊等部件的众多参数。
Vehicle occupant restraint system optimization involves many parameters of seat belts, airbags and other parts.
有干预的商店中正确使用约束系统的比例由干预前的15%上升到49%。
In the intervention stores, the percentage of correct restraint use increased from 15% before the intervention to 49% after.
这里的根本问题是，人人都忘记了一个无约束系统具有弹性体模态以及刚体模态。
The basic problem here is that everyone forgot that an unconstrained system has flexible modes AND the rigid body modes.
冗长的描述会过度地约束系统，与其描述什么是必须要做的，不如描述为什么需要去做什么。
Verbose descriptions over-constrain the system - how something should be done rather than just what is to be done.
是否存在太多的希望一个得到灵感的大学生会不需要约束系统，只要有他的“诚实”？
Is it too much to hope that an inspired undergraduate body would need no policing system, even that of its own "honor"?
介绍了某量产运动多功能(SUV)车辆的正面碰撞乘员约束系统的建立和验证过程。
The frontal impact restraint system model of a production sport utility vehicle (SUV) was developed and validated.
作为乘员辅助约束系统的组成部分，安全气囊在碰撞发生时对人体具有重要的保护效果。
Be regarded as the important component of SRS (Supplemental Restraint System), the airbag has the remarkable effects to the automobile passenger protection while collision happening.
基于在位形空间中受约束系统的几何性质，对机器人系统的运动及所受的约束力进行研究。
Based on the geometrical properties of the constrained system in configuration space, the motion and the constraining forces of robot system are studied.
RB碰撞试验考核的主要是乘员约束系统，而40%ODB碰撞试验考核的主要是车身结构。
The 100%RB is to examine occupant restraint systems, but 40%ODB is to examine vehicle body frame.
这些约化方法在其可应用的系统类型上有一定的局限性，比如其不能应用于不 完整 约束系统等。
There are restrictions on what type of systems these techniques can be applied to, e. g. , these reduction techniques do not apply to systems that are nonholonomically constrained.
通过对乘员约束系统逆问题满意准则模型的研究，首次提出一套适合CAE需要的多层交互求解策略。
This paper first proposes the multiple interchanged solution method suiting the need of CAE by studying satisfaction rule model of occupant restraint system reverse problem.
碰撞检测对约束求解产生影响，通过改变约束求解顺序或改变约束链，达到对约束系统有效性的维护。
Collision has an effect on constraint solution, so maintaining validity of constraint system is accomplished by modifying constraint solution sequence or constraint chain.
仿真与试验的结果表明，改进方案显著提高约束系统的性能，增强了其在碰撞过程中对乘员的保护效果。
The results of simulation and test show that the modification scheme markedly improve the performance of restraint system and its occupant protection effects during impact process is enhanced.
商店内干预措施包括在商店入口处的迎宾人员鼓励（顾客）使用适当的购物车约束系统，并附赠一张现金奖励券。
The in-store intervention consisted of greeters at the store entrance who encouraged the use of appropriate shopping cart restraints, plus a cash incentive coupon.
摘要通过MADYMO软件建立了侧面碰撞台车及儿童约束系统的仿真模型，并对所建立的模型进行了有效性验证。
Abstract: in this research, a simulation model of side impact sled and child restraint system was established in software MADYMO, and was verified in a simulation experiment.
服装参数化设计中的碰撞检测属于静态碰撞检测，具有精确性和实时性的要求，服装约束系统的有效性也需要维护。
Collision detection technology for parametric garment design is static collision detection. It asks for the property of precision, timing and validity of constraint system.
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.
针对某轿车建立了基于多刚体理论的侧面碰撞乘员约束系统动态仿真模型，并依据试验结果进行了模型的有效性验证。
The dynamic simulation model based on the multi-rigid-body theory of the passenger restraint system for side impact of a car is created, and its validity is verified by tests.
在所有的七个商店中，训练过的工作人员在商店付款区附近作为护理人员进行观察但不进行干预，记录下购物车约束系统的使用情况。
Trained study personnel conducted the observations unobtrusively in all seven stores, recording the status of shopping cart restraint use as caregivers approached the store checkout areas.
在所有的七个商店中，训练过的工作人员在商店付款区附近作为护理人员进行观察但不进行干预，记录下购物车约束系统的使用情况。
Trained study personnel conducted the observations unobtrusively in all seven stores, recording the status of shopping cart restraint use as caregivers approached the store checkout areas.
应用推荐