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The Snow White trench is near the center of a relatively flat hummock, or polygon, named "Cheshire Cat," where scientists predict there will be more soil layers or thicker soil above possible white material.

矿物质中如果含有水，说明火星表面岩石曾经存在于液态水环境。迄今为止，"勇气"号和"机遇"号火星漫游者已经发现了赤道附近地表风化层与水发生相互影响的证据。

The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.（2）By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.（3）A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.（4）A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.

研究主要内容和结果有：（1）得到指导梯度膜设计的几个准则：控制膜层厚度与接触半径比在0.8左右为宜；适当增加梯度层层数和顶层弹性模量，有利于提高抗屈服能力和改善界面处的应力状态；（2）通过对嵌入和滑动摩擦过程的分子动力学模拟，发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错；位错造成的不可逆变形和表面的原子堆积，是力的响应不可逆性的原因，也是构成摩擦力的主要因素；温度和嵌入速度对材料变形特性有显著的影响，当嵌入速度大于10 m/s时，屈服强度明显增加；（3）提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法；并开发出表面强化新工艺；（4）开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。

Objective: To evaluate the role of the connective tissue growth factorand transforming growth factor-β1(TGF-β1)in the formation of the pericystic layers of hepatic hydatid cyst .

目的：探讨CTGF与TGF-β1在形成肝包虫囊肿周围纤维囊壁中的作用及其临床意义。

In sensitisation tests carried out in laboratories, the whole sample is dissolved and hence the hydroperoxide found in layers below the surface of the rosin particle are made available to the skin of the animal under test.

在致敏试验在实验室进行的，整个样本被解散，因此氢在低于松香颗粒表面层发现的提供给被测试的兽皮。

In the program, user can choose multiple hidden layers and ten transfer functions for neuron including Linear transfer function, Sigmoid transfer function, Hyperbolic Tangent transfer function, Gaussian transfer function, etc. The capability of the program is better than that of program developed by our laboratory before.

本研究所开发之前馈式类神经网路视窗程式，在结构上可以选择多层的隐藏层，且转换函数有线性函数、S形函数、双曲正切函数、高斯函数等十种可做选择，比实验室开发的前一个版本，在功能上又提升了不少。

Pelvic floor hypertonicity was addressed with asanas that would relax both layers of the pelvic floor More importantly, many of these asanas would help bring muscle awareness to the patient and help them learn to self-correct.

更重要的是瑜伽的许多姿势能让患者的肌肉产生记忆并让他们学会自我修复。

Hypodermis One or more layers of cells that may be found immediately below the epidermis of plants.

下皮：是植物表皮下的一层或多层细胞，主要由大量薄壁的无色细胞组成。

It should be recalled that skin is constituted by three superposed layers: the epidermis on the surface, then the dermis, and then the deeper hypodermis, and further that it includes auxiliary structures such as sebaceous glands in particular.

大家知道，皮肤共有三层：位于表面的表皮，往下真皮，然后是皮下组织。此外，它还包括皮脂腺这样的辅助结构。

Two large ice crystal layers, known as firmaments, will be re-formed around the planet.

两个大冰晶层，称为firmaments ，将重新在地球周围形成。

A mass of igneous rock intruded between layers of sedimentary rock, resulting in uplift .

岩盖一种侵入沉积岩岩层之间的火成岩，它会产生隆起

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失