两倍的

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

Therefore, the postmasters at these two offices should exchange assignments: the Presto City postmaster will solve the problems of inefficiency and customer dissatisfaction at the Lento City office while the Lento City postmaster learns first -hand the superior methods of Presto City.

邮局办公业务的地区总监的备忘录：在为期2周的邮政操作研究中，Presto城的邮政处理的项目为Lento城的邮局两倍，虽然两个城市规模差不多，但是，P城的顾客满意度看起来更高，因为研究发现的对P邮局的抱怨要比较少。因此，两个邮局的局长应该交换位置。P城的局长将解决L城邮局的低效和顾客不满问题，而L城的局长可以从P城学习第一手的管理方法。

Nature has gien men one tongue and two ears, so that we may hear twice as much as we speak.

&上天给了我们一条舌头和两只耳朵，所以我们听的应该是说的两倍。&

Given two people of approximately the same ability and one person who works ten percent more than the other, the latter will more than twice outproduce the former.

假设两个人拥有几乎一样的能力，其中一个人比另一个人多干十分之一的活，他将多产两倍。

Addition of DSPE-PEG-RGDS and Stearyl RGDS in liposomal prescription gives birth to two targetedly thrombolytic liposomes. The former has long circulating function, the latter has no long circularing action but carries two times directing molecules as that carried by the former.

将DSPE-PEG-RGDS和Stearyl RGDS分别掺入脂膜中制备得到了两种靶向溶栓脂质体，前者同时具有长循环作用；后者不具长循环功能，但导向分子的携载量为后者的两倍。

Their profits have trebled in the last two years.

他们的利润在过去的两年间增长了两倍。

We have tripled our output over the past two years.

在过去的两年中我们的产量已增加了两倍。

In eighteen thirty-five, a barrel of flour cost six dollars. Two years later, the price had jumped to more than twelve dollars. The same was true with meat and other foods. Even coal, the fuel people used to heat their homes, cost twice as much.

在1835年，一桶面粉只需6美元，两年后，这一价格上涨到12美元以上，同样，肉制品和其他食品的价格也大幅度上涨，即便是煤，这是人们用于取暖所用的燃料，其价格也上涨了两倍多。

It consists of two private joint planning, completion of power generation is currently the world's largest 5-megawatt wind power plant as a whole.

它由两家私人企业联合策划，建成后发电功率是目前世界上最大的5兆瓦风力发电站的两倍多。

Since plants in the twin-row system were separated into two rows rather than one in the study, they intercepted almost twice as much light as plants in the single-row system.

由于双垄大豆是分成两行种植的，因此，双垄大豆所阻挡的光线比单垄大豆多出近两倍。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。