查询词典 thrust hoe

In the third part, the theory of thrust angle and unbalanced forces is studied andapplied to Xiluodu arch dam. some conclusions are obtained :(1) The thrust angle issmaller by elaso-plastic computation than elastic computation. For the non-linearcomputation, the thrust angles at different elevations all increase during overloading,which reveals the internal mechanism of good performance of arch dam in conditionof overloading;(2) The elaso-plastic theory always minimizes the actual unbalancedforces in the sense of a condition number in the norm ofcomplementary energy.

第三部分，通过对溪洛渡拱坝拱端推力角及不平衡力的研究，得出如下结论：(1)非线性计算较弹性计算的推力角大；对于非线性计算而言，拱坝超载过程中各高程段的推力角均有所增加，这反映了拱坝具有较高超载能力的内在机制；(2)在总余能范数的意义上，按弹塑性本构关系确定的不平衡力或加固力是最小的，弹塑性计算确定的加固力和真解相比偏于安全。

Based on the investigation and research on shield machine technology, and studying the hydraulic thrust control system of shield machine by reading, analyzing, summarizing lots of literatures and investigating at site. Referring to the simulation experiment platform of shield machine built by ZheJiang University and ShangHai Tunnel engineering corp., analyzing the work principle of the thrust hydraulic system and the thrust attitude control method of shield machine.

在对盾构技术充分调研的基础上，通过阅读、分析及综合大量文献和现场调研，参照浙江大学和上海隧道工程公司共建的盾构模拟实验台，分析了盾构液压推进系统工作原理及其掘进姿态控制的方法，对盾构液压推进控制系统进行了控制仿真研究。

First the related condition which causes the non symmetric thrust flight and the control method under the circumstances of the non symmetric thrust flight are stated, the relationship between the non symmetric thrust flight and the minimum control speed is pointed out.

首先 ，叙述了发生不对称推力飞行的条件，在不对称推力飞行条件下的操纵方法，以及和最小操纵速度的关系。

In compressional area, physical modelling has been proved to be a powerful tool for simulating the evolution process of fold-thrust system, and gets great progress in nappe and double thrust structures, thrust belt inversion and basement involvement, compressional orogenesis function and surface process, structure transform zone in compressional area and mantle convection together with collision or subduction of plates etc.

在挤压地区，构造物理模拟已经被证明是一种模拟逆冲褶皱系统演化过程的强有力工具；在推覆体或双冲构造、冲断带的反转与基底卷入、挤压造山作用与表面过程、挤压地区构造转换带及地幔对流与板块碰撞俯冲等方面取得了很大进展。

Firstly,we should discuss the definiton of thrust belt ,thrust fault,over thrust belt ,reversed fault and overthrust fault and their differences,and then analyze the causes of formation and mechanisms as well as the tectonic background.

如何看待冲断带油气勘探，首先要讨论冲断带、冲断层、掩冲带、逆断层、逆掩断层的定义及其差异，然后分析冲断带的成因机制和形成的大地构造背景，冲断带油气勘探的兴衰历史。

The main contents and results are included as following:The main influence factors on thrust adjusting character of pintle motor were sumarized. The influence of burning rate exponent and throat diameter on thrust was analysed and the relationship between pressure and thrust ratio of pintle motor was obtained.

本文研究内容及主要成果如下：(1)从理论上分析了喉栓变推力发动机推力调节特性的主要影响因素，揭示了推进剂压力指数和喷管喉部面积变化对推力调节特性的影响规律，给出了压力调节比和推力调节比之间的转变关系。

Controlled by step fault, the ancient grazing area is longitudinally characterized by multi-layer structure, in which the shallow layer is tight type thrust overturned anticline, the medium layer is ridge-shaped fault block controlled by step thrust, and the deep layer is thrust anticline covered by buried hill.

古牧地构造纵向上具多层构造特征，其中浅层为紧闭型逆冲倒转背斜，中层为受阶状逆冲断层控制的屋脊状断块，深层为潜山披覆型冲断背斜。

There are fault thrust,strike slip fault and over thrust in this thrust nappe .

推覆体主要为震旦系、寒武系的灰岩，由NW→SE推覆掩盖在志留系页岩之上，主滑脱面倾角较小(10°～20°)。

A series of basementinvolved thrust with highangle dipping to southern Tianshan dominate the contractional deformation in the basement. A miniscale imbricate wedge thrust system was developed in the footwall of basementinvolved thrust with a highangle dip, and a basementcored faultedanticline was developed in the hanging wall.

深层断裂变形以向山脉倾斜的高角度基底卷入逆冲断层为主干断层，断层上盘形成冲断隆起，次级断层相对较少，下盘则发育一系列同向倾斜的次级逆冲断层构成楔状叠瓦冲断构造。

The innovations of the thesis have been shown in several aspects as follows: put forward the transfer mechanism model of the landslide thrust on basis of the soil arching theory, and according to the model the formula about how to compute the thrust acting on the pile and the maximum pile spacing have been deduced. Set up the displacement model about the interaction of the pile and landslide, and their relatively displacement can be taken into consideration when computing the pile, thus the limitation of supposing the distribution of landslide thrust has been avoided, at the same time, the applied condition of the model and the computing procedure have been given. Bring forward the improved computing method of the anti-sliding pile with prestressed cable, which has been verified rational and applicable, making the method more perfectly in theory. Through the study on the mechanical model of the foundation beam with prestressed cable, put up the limit design idea of the structure, and the realization procedure of the idea has been given and programmed with the finite element, which leads to a new thinking for the safe and rational design of the foundation beam with prestressed anchor cable.

本论文的创新之处在于，用土拱理论建立了滑坡推力在抗滑桩与坡体之间的传递机制模型，并由此得到了作用于抗滑桩上的滑坡推力计算式以及最大桩间距的确定条件式；建立了抗滑桩与滑坡体相互作用的位移模型，该模型能考虑桩与坡体相互作用过程中二者相对位移的影响，避免了人为假设滑坡推力分布形式的缺陷，给出了其适用条件和计算过程；提出了预应力锚索抗滑桩的改进计算方法，使得预应力锚索抗滑桩的计算理论更加完善，通过实例验证了该方法的适用性和合理性；在预应力锚索地梁力学计算模型研究的基础上，提出了预应力锚索地梁极限状态设计的新思想，给出了该设计方法的实现途径并编制了有限元计算程序，为锚索地梁合理而安全的设计提供了一种新思路。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。