结构方程

The dynamic evolution of self and nonself, the presentation of the antigen, and the generation of the antibody are proposed.

分析了计算机病毒的逻辑结构，建立了自体和非自体的演化方程、抗原提呈及抗体生成方法。

As an additive N-way classification model is fitted to the data, the structure of the coefficient matrix of reduced normal equation obtained by eliminating the parameters of the other factors is discussed.

当对由实验所产生的资料配适具相加性的N-方式分类模型，我们讨论消去与其他因子有关的未知参数所获得之缩小的正规方程的系数矩阵之结构。

A method of unstructured dynamic patched grid on the basis of linear spring analogy is developed in the present paper,and the unsteady Euler equations are solved to simulate the rotor forward flight flow field.

发展了一种基于线性弹簧理论的非结构运动对接网格方法，通过求解非定常Euler方程模拟了旋翼的前飞流场。

The control equation for computational fluid dynamics is also derived, where standard k-ε model is used for onflow.

其中湍流模型采用标准k-ε方程，计算网格采用三角形非结构网格。

Emulate use blame structure reseau to undertake to aspiration mouth reseau differentiates, apply standard double equation to regard onflow as computational model.

仿真采用非结构网格对吸尘口进行网格划分，运用标准双方程作为湍流计算模型。

Based on the axial symmetric N-S equation of compressible liquid, we establish the onflow model to simulate convergent nozzles' free jet with different internal parameters by using structural grid and finite volume of quadratic precision.

建立了会聚型喷嘴的湍流模型，根据可压缩流体轴对称N－S方程，采用结构网格和二阶精度的有限体积法，对不同内部形状参数的会聚型喷嘴自由射流进行了数值模拟。

The fixed point theory of increasing operator and the method of upper and lower solutions based on it are one of the basic methods in the study of various nonlinear problems.

特别的，我们还考虑了一类m-点边值问题正解的全局结构。本文的最后给出了极限增算子方程解的一些存在性结果。

In order to simplify the process of solving dynamic programming equation, the lemmas and corollaries concerning properties of the optimal value function in up-peak of elevator are presented and proved; the structure of optimal dispatching policy in up-peak is constructed, and conclusion that the optimal dispatching policy in up-peak is a threshold policy is obtained.

为了简化求解动态规划方程，提出并证明了电梯上高峰优化值函数特性的相关引理和推论，构造了电梯上高峰最优调度策略的结构，得出了上高峰优化调度策略是基于阈值的策略的结论。

The orthogonal expansion method of the stochastic structural analysis leads to an orderexpanded equation whose order is much larger than the actual structures.

针对随机结构正交展开分析方法计算量过大的缺陷，本文首先提出基于Ritz模态向量的扩阶方程动力聚缩算法。

If any combination other than 0-0, for the ODE pin and the OSB bit, is used, the three-state control of the streams will be left to the state of the MOD1 and MOD0 bits of the Connection Memory.

如果任何其他的组合比0-0为常微分方程脚位和定向结构刨花板，是使用了流三态控制将留待国家的MOD1和连接记忆MOD0位。

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％。