查询词典 elastic layers

For a heterogeneous elastic solid consisting of two homogeneous layers, three homogeneous layers whose shear wave velocities increasing with depth, or three homogeneous layers whose interlayer has high velocity, if there are multi-mode dispersion curves, the phase velocity V〓 of the first mode will close up to the Rayleigh wave velocity of the bottom layer when frequency f→OHz, and V〓 of the first mode will close up to the Rayleigh wave velocity of the top layer when f→∞.

由多导波模式的相速度频散曲线还可知，对于二层固体介质、结构层的横波速度随深度而递增的三层固体介质、含硬夹层的三层固体介质而言，若频率f→OHz，其基阶模式的瑞利波相速度V〓→V〓（V〓为最底层介质的瑞利波速度）；若f→∞，其基阶模式的V〓→V〓（V〓为最上层介质的瑞利波速度）；因此，随着频率f逐渐升高，野外实测的瑞利波相速度V〓曲线应该主要为基阶导波模式。

Therefore the dispersion curves obtained in the field are primarily consisted of the first mode. For a heterogeneous elastic solid consisting of three homogeneous layers whose interlayer has low velocity, the phase velocity V〓 of the first mode will also close up to the Rayleigh wave velocity of the bottom layer when frequency f→OHz, but V〓 of the first mode will close up to the shear wave velocity of the interlayer when f→∞, and there is a cut-off frequency at high frequency region for the first mode and V〓 close up to the compressional velocity of interlayer when interlayer is liquid.

当三层固体介质中存在软夹层时，若f→OHz，则其基阶模式的相速度V〓→V〓（V〓为最底层介质的瑞利波速度）；若f→∞，其基阶模式V〓→V〓（V〓为中间层介质的横波速度）；若三层介质中存在液体夹层，当f→OHz时，基阶模式V〓→V〓，而基阶模式在高频段存在一个截止频率，截止频率处的瑞利波速度V〓→V〓；由此可判定，野外实测的相速度频散曲线不仅有基阶导波模式，同时还应有高阶导波模式波的存在，接收信号中存在模式间的跳跃，因此频散曲线会产生"之"字形现象。

This paper presents a finite element incremental substructure method inconsideration of nonlinear contact condition between elastic layers.

本文根据弹性层状体系层间接触面的实际状态，提出了一种考虑层间非线性接触的有限元增量子结构分析法。

Research results: The proposals are offered that for ballastless track it should be given priority to lay open latch impressed rail with iron tie plate and spring having bolt, to equip with iron tie plate and single layer or double layers elastic bedding, and to equip with no bed retaining fastenings for sub -rail foundation.

研究结果：提出了无碴轨道宜优先采用带铁垫板的分开式、弹条有螺栓扣压钢轨和铁垫板、单层或双层弹性垫层、轨下基础不设挡肩扣件的建议。

Based on continuous conditions of general displacements and stresses at interfaces of adjacent layers and given boundary conditions, the reflection and transmission coefficients of elastic wave were obtained by virtue of partial wave method and propagator matrix method.

以多层纯弹性结构为研究对象，验证本文提出方法的正确性，然后对弹性波在多层电磁弹性结构中的反射与透射特性进行了计算和分析，并讨论入射角、入射波频率和电磁边界条件对这些系数的影响。

At this time , two layers of pleura separate and lungs contract for the elastic recoil.

此时两层胸膜彼此分开，肺将因其本身的回缩力而塌陷。

The pore-scale elastic polymer microsphere can improve waterflooding through its migration in pores, blocking-up leaking layers, elastic deformation, remigration, re-plugging, and changing direction of injected water in reservoirs.

孔喉尺度聚合物弹性微球具有在油藏岩石孔隙中运移、封堵、弹性变形、再运移、再封堵，及全程改变注入水渗流方向的特点。

Functions: supplement collagenic fibre and effectively restore the damaged collagenic fibre. Provide the skin with moisture and nutrition. Remove the thin wrinkle and dry wrinkle around the eyes, delay consenescence of the eye skin. Stem cell activating factors can quickly activate the dermal cells in all layers, promote the renewal of aging cells and speed up the restoring and composing of collagenic fibre and elastic fiber to restore the aging skin. HA high-effectively supplements moisture that can be maintained for a long time. Grapeseed Oil, VitE and Green Tea Extracts Liquid feature in anti-oxidation, removal of free radicals, improvement of the skin metabolism and circulation, elimination of extra moisture and toxin, recovery of skin energy and vigor. Its long time use will make your skin tight and tender, presenting a new look full of vigorous charms.

产品功效：补充胶原蛋白，有效修复受损胶原纤维，为肌肤提供水分和营养，消减眼部细纹和干纹，延缓眼部肌肤的衰老；干细胞激活素能够快速激活皮肤各层细胞，促进衰老细胞的更新，加速胶原纤维和弹性纤维的修复与合成，修复老化受损肌肤； HA 强效补水，高效保湿；葡萄籽油、 VitE 、绿茶萃取液等抗氧化、清除自由基，改善肌肤的代谢和循环，排除多余水分和毒素，回复肌肤能量与活力，长期使用，将令眼部肌肤紧致细嫩，神采奕奕。

The studies on the compositions, origins and elastic properties of the southern Tibetan lower crust include the following 4 aspects: the petrological and geochemical festures and ages of granulitic facie rocks located in Higher Himalayas; dehydration melting experiments on the biotite-plagioclase gniess collected from Higher Himalayas at high temperature and high pressure to model the formation of the granulites; measurements of wave velocities of the lower crustal rock in situ; analysis of origin of intracrust low wave velocity layers beneath southern Tibet.

以西藏南部下地壳物质组成，成因及其弹性性质为研究目标进行了4个方面的相关研究：高喜马拉雅地区麻粒岩相岩石的岩石学，地球化学和年代学研究；麻粒岩相岩石成因的高温高压实验；原位条件下岩石的弹性波速测量；西藏高原壳内低速层的成因分析与模拟。

Cause: the human body from outside to inside the abdomen there are many layers, which are skin, elastic fibers in the skin, subcutaneous fat layer, muscle fiber, composed of groups with the rectus abdominis tendon, preperitoneal and retroperitoneal fat layer.

大多会，但不是对于每个人来说都是一样的，但就是有的话，现在也有满多药可以减少的，不用太担心的。妊娠纹形成原因：人体的腹部从外到内有许多层，它们是皮肤，皮肤弹性纤维，皮下脂肪层，肌纤维群与肌腱组成的腹直肌，腹膜前脂肪层和腹膜。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。