约束

The effect on the stress intensity factors of different crack position, different wheel load and different pavement structure was also analyzed particularly.

推导了考虑层间界面部分约束的层底裂缝应力强度因子的数值计算方法，并详细分析了不同层间约束条件对路面裂缝应力强度因子的影响。

The freight transportation can not, and be impossibly develops base on the sacrifice of environment and uncontrolled consumption of the resources. The developing way, which is high input, high consumption, high pollution and low efficiency, and focuses on expanding transport infrastructure, can not adapt to the fast and good economic social development, be difficult to continue, and needs to change urgently. Searching after the freight transportation developing way according with China\'s national conditions becomes a primary task.

随着经济社会的快速发展，未来货物运输发展将面临越来越严格的资源约束和环境约束，我国已不可能重复发达国家先发展、后治理的道路，货物运输发展不能够、也不可能建立在牺牲环境和无节制消耗资源的基础之上，以扩大运输基础设施规模为发展重点的高投入、高消耗、高污染、低效益的发展方式与经济社会又好又快发展的要求不相适应，已难以为继，迫切需要转变，探索符合我国国情的货物运输发展方式成为货物运输发展的首要任务。

Research has been done on the coupling form between the two-row planetary gear train and the shift restriction based on the matrix, and then the method of establishing mathematics model has been presented to analyze the planetary gear transmission using MATLAB. The coupling-matrix, restriction-matrix and transmission matrix form the model. All coupling-matrices corresponding two kinds of the coupling form determine the planetary gear transmission model.

基于矩阵理论对双排行星齿轮变速机构的行星排之间联结、换挡约束进行研究，提出用联结矩阵、约束矩阵和传动矩阵构建数学模型并使用MATLAB进行传动分析的方法。2种方式的联结形式所对应的联结矩阵可以确定机构所有可能的结构型式，据此得到双排行星齿轮变速机构全部型式谱图。

The WTO's rules allow them plenty of scope: after two decades of unilateral tariff-cutting most of their tariffs are well below their "bound" rates, the ceilings agreed in the trade club.

WTO的规则给了他们很大的活动空间：在经历了20多年的关税单边下调之后，大多数国家的关税都在他们的&约束&税率之下，达到约束税率是进入WTO的门槛。

Because effect of upper bridge to longitudinal vibration of pier could not be neglected,fundamental frequency calculation formulas of pier restrained on its top by bridge beam were derived based on energy method.

针对实际工程中桥梁上部结构对桥墩顺桥方向振动具有不可忽略的约束作用，在能量法的基础上推导出了顶端受桥梁约束的桥墩复合振动基频计算公式。

The common programme will be the united front's guide to action and will serve also as the tie which, like a cord, closely binds together all the organizations and individuals in the united front, all political parties and groups, people in all walks of life and all armed forces.

共同纲领是这个统一战线的行动方针，同时也就是这个统一战线的一种约束，它像一条绳索，把各党各派各界各军一切加入统一战线的团体和个人都紧紧地约束起来。

The common image plane of three images after rectification is calculated under rectification constraints, and three-ranked matrices are then computed under undistorted image constraints. With this the image is resampled in planar affine coordinate to align images either in row or in column.

根据校正基本约束确定校正后的图像平面，利用图像不变形约束计算校正所需的三阶矩阵，用于在平面仿射坐标系下对图像进行重取样，使图像的行列对齐。

At the same time, In order to get adapted to the market change, improve the competitiveness, reinforce the cohesiveness and maintain the upswing trend, CEC should take effective measures, such as to accept new idea and develop the managers" awareness of competitiveness; reform the selecting and appointing mechanism; establish a sound compensation system; improve consumption for the position; break the dominance of state-owned shareholders on the stock market and improve corporate governance structure; reinforce the financial supervision on the corporation; make a full use of restraint effect of competitiveness and reputation mechanism; build various "golden parachutes.

与此同时，CEC在企业经营者激励与约束方面应采取针对性的措施，通过转变观念，树立市场经济的竞争意识和产权意识；改革企业经营者的选拔任用方式，积极推进企业经营者管理的市场化进程、建立科学合理的薪酬体系、规范职位消费，实行职位消费货币化、调整股权结构，实现投资主体多元化，健全公司法人治理结构、加强企业财务监控和内部制度建设、充分发挥市场竞争机制和声誉机制对企业经营者的激励约束作用、设计各种形式的&金色降落伞&等措施的实施，适应市场变化，提高企业核心竞争力，增强企业的凝聚力，保持事业的长盛不衰。

The pulverized systems optimized operation in power station is a multi-variable, non-linear and time-variant issue which is restricted by many conditions, such as combustion stability, mill safety and furnace slagging problem, in addition, the controlling parameters and restricted conditions are coupling each others.

电站制粉运行优化是一类多变量非线性时变系统，同时受到燃烧稳定性、磨的安全性、炉膛结焦等因素约束，且控制参数和约束条件之间相互耦合制约。

Via semi-inverse method,the author has deduceda most concise generalized variational principle with only one Lin's constraint and onecorresponding Lagrange multiplier.

应用凑合反推法，作者推导得到了一个较为简洁的林家翘约束的广义变分原理，即只需一个林家翘约束和一个相应的拉氏乘子。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。