查询词典 frozen soil

In the end, a frozen-soil penetrator was successfully designed and optimized in the way discussed.

首先根据现有的聚能装药理论、侵彻模型、经验公式及侵彻要求初步确定聚能罩的选择范围。

Thirdly, according to the development of the frozen soil, the coupling model of single freezing pipe of axial symmetry of temperature field, stress field and moisture migration is put forward firstly. Then, by means of the progressing principle of potential field, the coupling model of temperature field, stress field and moisture migration which is under the condition of the multi-freezing pipes is extended. At last, the energy balance equation, stress balance equation, quality balance equation, geometric equation, physical equation, initial and boundary conditions etc are adopted to give the analytic solution to the problem of plane axial symmetry of single freezing pipe.

第三，在对室内试验和现场实测结果研究的基础上，分析了土体冻结过程中温度场、应力场、水分场耦合原理，并按照冻土体形成发展过程，首先建立了单一冷源冻结轴对称温度、应力、水分场耦合模型；接着利用势场的迭加原理，将单一冷源情况的三场耦合问题推广到多冷源情况的三场耦合；最后根据能量守恒平衡方程、应力平衡方程、质量守恒平衡方程、几何方程、物理方程、初始及边界条件，解出了单一冷源平面轴对称问题的解析解。

But sometimes Squaw Walden had her revenge, and a hired man, walking behind his team, slipped through a crack in the ground down toward Tartarus, and he who was so brave before suddenly became but the ninth part of a man, almost gave up his animal heat, and was glad to take refuge in my house, and acknowledged that there was some virtue in a stove; or sometimes the frozen soil took a piece of steel out of a plowshare, or a plow got set in the furrow and had to be cut out.

有时候，瓦尔登这印第安女子复仇了，一个雇工，走在队伍后面的，不留神滑入了地上一条通到冥府去的裂缝中，于是刚才还勇敢无比的人物只剩了九分之一的生命，他的动物的体温几乎全部消失了，能够躲入我的木屋中，算是他的运气，他不能不承认火炉之中确有美德；有时候，那冰冻的土地把犁头的一只钢齿折断了；有时，犁陷在犁沟中了，不得不把冰挖破才能取出来。

There is also widely distribution of frozen soil over Northwest China and Qinghai-Tibet Plateau.

在中国西北地区，青藏高原地区都有广泛的多年冻土和季节性冻土的分布。

Based on the overall temperature monitoring for frozen soil embankment with riprap slope protection and without riprap slope protection in Qingshuihe test section of Qinghai-Tibet Railway,the ground temperature,accumulated temperature and the maximum thawing depth variation in temperature field of these two kinds of embankments were analyzed.

通过对青藏铁路清水河试验段片石护坡、无片石护坡的冻土路堤和地基的温度进行的全面监测，对比分析了路堤体内及基底的地温、积温及温度场中最大融化深度的变化情况，结果表明，采用片石护坡措施的试验路堤，与对比段相比，降温效果明显。

The research results can provide reference for design and construction of subgrade in seasonal frozen soil region.

本文成果可作为季节性冻土地区路基设计和施工的参考。

Based on frozen soil creep tests,yield stress limit is approximately determined by means of experimental tautochrone at first.

在大量冻土蠕变试验的基础上，用等时曲线近似方法确定了冻土的屈服极限，建立了多种粘弹性和粘弹塑性流变模型，采用非线性最小二乘法反演了冻土流变参数，并基于简单性和精确性原则，建立了冻土模糊优选模型。

It was one term momentous engineering, whereas shallow burring pipe heat preservation ensure water supply normal parameter clause against that at Qing zang railway frozen soil environment carry into execution pipe shallow cover up water supply.

在青藏铁路冻土环境中实施管道浅埋供水是一项重大的工程，而浅埋管道保温则是保证供水正常的首要条件。

High and low confining pressures have different effects on the deformational properties and mechanical index of frozen soil.

其变形样式和组合方式记录了板块俯冲-碰撞造山的历史和过程。11。高围压和低围压对冻土的变形性能及力学指标有不同的影响。

Fractal structure features of granulometric composition in frozen soil are studied basedon the fractal theory.

本文据分形理论，研究了冻土粒度成分的分形结构特征，结果表明，冻土的分维介于2和3之间，平均值为2.6左右。

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。