极限

The relation between the limit state function of large and complex structural systems and input random parameters is always unknown. A quadratic polynomial is considered to simulate the physical limit state function.

工程中大型、复杂结构的极限状态方程与输入随机变量的关系往往是未知的，利用响应面法，用一个二次多项式来模拟结构的极限状态方程。

At the same time , Feiyu Bi Demonstrate the suitable ingenuity on stilling mould the targets choice pay attention to the dispositions of the limit personality and limit situation relation very much too.

在创作中，毕飞宇以诚实、清醒、质疑的个人立场和对塑造对象独具匠心地择取，极限性格和极限情境关系的精心配置，构建了一个充满张力的艺术世界。

A pilot vehicle system mathematical model containing nonlinear control elements of the flight control system is established by the describing function method; the limit cycle of PVS is determined; the relation between the limit cycle and pilot induced oscillation and the influence of nonlinear control elements on PIO are explored.

采用描述函数法建立了含有非线性控制系统的人机系统数学模型，确定了系统的极限特性，探讨了极限环与驾驶员诱发振荡之间关系和操纵系统非线性因素对PIO影响等。

The paper provides the theorem of the limit of combination of power and exponent function ,which gives us a new method to work out the limit of this kind of function.

给出了幂指函数极限定理，对求幂指函数极限的方法进行了讨论，并给出一些应用实例。

Because of the limit of system's stability,the system can only limitedly protect itself from outer interfering and destroying.Therefore ecosystem value has its margin.

由于系统的稳定性是有限的，系统对外来干扰和破坏的承受能力存在极限，以生态功能为根本的生态价值也就存在极限。

The Parabola Hypothesis corrected by the authors. The authors have used this method on computer to get the bending fatigue test data of carburized and quenched gears and the fatigue limiting stress distribution. Furthermore, the...

然后对渗碳淬火钢齿轮的弯曲疲劳试验数据用JFKC法进行计算，得到了它的疲劳极限应力分布，并对比其相应的成组试验法测定的疲劳极限应力分布进行了分析和讨论。

Reinforced Mixing Pile which is made of two complementary material is introduced, which congeals in the water soil agitation the beginning of pile inserts certain length the core pile,forms the compound stress pile one kind of new pile,had the core pile participation, enhanced the pile body rigidity and the section supporting capacity,causes display which the water soil the limiting condition side friction and the pile body concrete material strength may coordinate balanced,thus obtains the high single pile limit supporting capacity.

劲性搅拌桩是在水泥土搅拌桩初凝前插入一定长度的芯桩，形成复合受力桩的一种新桩型，有了芯桩的参与，提高了桩身刚度和截面承载力，使水泥土的极限状态侧摩阻力和桩身混凝土的材料强度可以均衡协调的发挥，从而获得较高的单桩极限承载力。大量工程实践证明，该桩型具有承载力高、造价低、桩身质量稳定可靠、施工工艺简单和环保效益好等优点。

The action point of limiting force on retaining structure is not always at 1/3 of the height of retaining structures, but varies with the friction angle δ between soil and retaining structures, the type of limiting state, the failure mode, the internal friction angle φ, and cohesion c of the soil, ranging from 1/5 to 2/3 of the height of retaining structures.

3土体极限荷载P〓的作用点位置不象Coulomb理论中假定的那样，总是作用在墙高的1／3处，而是与土体极限状态的类型、土体的破坏形式、墙土之间的摩擦角δ、土体的内摩擦角φ和粘聚力c有关系，在挡土结构物高度的1／5到2／3的范围内取值。

This limit is called the line integral of f along C from A to B with respect to arc length; that is

时 ，该黎曼和有极限，该极限就叫做沿曲线从 A 到 B 对弧长的曲线积分。

The establishment of the theory of calculus so that a solid foundation of logic, the calculus in the contemporary field of science to the whole more extensive and reasonable use and development of a deeper, so the limit order to function as a top priority of this part, flexibility for the use of limits is the basis of learning advanced mathematics.

其理论的确立使微积分有了坚实的逻辑基础，使得微积分在当今科学的整个领域得以更广泛，更合理，更深刻应用和发展，所以求函数的极限成为这一部分的重中之重，灵活掌握运用极限的求法是学好高等数学的基础。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐