讲理论

However,authors still do not find the relevant references on convergence and symmetric problems of the semi-analytical solution.Based on the semi-analytical solution for Hamilton canonical equation theory,the formulations of the clamp and simply supported and symmetric boundary conditions on the Hamiltonian element are derived by the variational principle.Several numerical examples show that with increase of meshes,the convergence rate of the semi-analytical solution is faster than the convergent rate of traditional finite element method based on displacement.

①在厚度上没有任何位移和应力模式的假设，由于传递矩阵方法的引入，从理论上讲，不受板壳厚度或层合板壳层数的限制；②采用弹性力学的Hamilton正则方程半解析法，可以克服边界的局部化效应[8]；③由于在平面内或圆柱壳的曲面内采用了有限元法，所以一般的板壳问题不受结构侧面边界条件的限制，在复杂工程板壳问题上具有广泛的应用领域。

A repeat of 2000-01 could, in theory, force the central bank to cut rates.

从理论上讲，如果2000—2001年的一幕重现，欧洲央行将被迫采取降息行动。

Growth. It's theoretically easier to grow Centrex than a standalone PBX or key system, which usually has a finite limit.

成长性。理论上讲，与独立的 PBX 或按键系统相比，Centrex 易于进一步开发，通常限制较少。

If there is a value of chromatic aberration in each group, and a certain relationship between the positive or negative sign of chromatic aberration and the selection of glasses, the secondary spectrum of the whole lens system can be reduced to any small value.

从理论上讲，如果使每一组元产生一定量的色差，并使色差的正或负与玻璃的选择满足一定的关系，则整个透镜系统的二级光谱可减小到任意值。

From the view of mathematics, it is a NP-hard combinational optimization problem with constraints and it is difficult to find the global optimal solution in theory.

从数学上讲，机组投入问题是一个多约束的NP-hard组合优化问题，很难得到理论上的最优解。

From the point of view of the need, fulfilling environmental responsibility is an inevitable requirement of the Sustainable Development Concept and the Scientific Development Concept. From the point of view of the possibility, the rise of Communitarianism will play a catalytic role on the implementation of environmental responsibility.

如果从宏观层面进行理论划分的话，环境责任观念是责任伦理的组成部分；从必要性的角度看，履行环境责任是可持续发展观与科学发展观的必然要求；从可能性的角度讲，共同体主义的兴起将对环境责任的落实将起到促进作用。

In theory, this conglomeration alone might have proven interesting.

从理论上讲，这种集团化的单可能证明有趣。

For this theory, it is better than the traditional fixed damping conjugate gradient method.

从理论上讲，它要优于传统的固定阻尼共轭梯度法。

According to expert estimates, in theory, buy a new house this link, consumers can reduce at least 10%-20% of the purchase cost.

根据专家估计，从理论上讲，购买了新房子此链接，消费者可以减少至少10 ％-20 ％的采购成本。

In theory, the size of the creel (and therefore the number of packages it may hold)is unlimited.

从理论上讲，筒子架的大小(即它所能容纳的筒子的数目)是没有限制的。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。