变形

Grain boundary slidings happen in this alloy at the creep temperature of 200 ℃ and the deformation of this alloy is coordinated by intragranular slip and grain boundary sliding.

结果表明：在125~200 ℃蠕变温度下，当蠕变寿命接近100 h时，2024铝合金的蠕变应力随着温度的升高明显下降；与125 ℃相比，150 ℃时合金的蠕变应力下降9.3%，在175 ℃时合金的蠕变应力下降30.3%；当蠕变温度为200 ℃时，该合金的蠕变应力下降幅度达到45.8%；在125~175 ℃下，合金在蠕变过程中的变形机制主要为位错在晶内的滑移；在200℃时，合金晶界开始发生滑移，合金变形由晶界滑移与位错在晶内的滑移协调完成；在合金蠕变断面上存在大量微孔，随着蠕变温度的升高，微孔的尺寸明显变大，当微孔尺寸超过3 μm时，微孔对合金的断裂机制有显著影响；在125和150 ℃下，合金的蠕变断口呈现韧窝型穿晶断裂特征；在175和200 ℃下，合金的蠕变断口呈现沿晶断裂特征。

The substructure in the deformed specimens consists of very small amount and fine precipitates with equaixed polygonized subgrains in the elongated grains and developed serrations in the grain boundaries.

指数方程中的平均热变形激活能Q为157.9kJ/mol。变形试样中的亚结构由拉长后晶粒中的少量细小的等轴多边形亚晶粒和晶界上的锯齿状组织构成。

This paper addresses deformation of tree swaying by presenting a new method which combines fractal with physical mechanics deformation.

针对树在风中的摇曳变形，提出了一种将分形技术和物理力学变形技术相结合的方法。

A rheologic model of rockfill is proposed, which can better reflect long-term deformation of the rockfill and is easy to determine parameters through feedback analysis.

针对高面板堆石坝的应力变形特性，分析了堆石体的流变机理，提出了一个能够反映堆石长期变形特性且易于通过反分析方法确定参数的堆石流变模型。

By using undisturbed and remoulded soil samples,shear deformation,shear strength and consolidation properties of the structured clay which indicate the significant structure of the soil and the effect on engineering property are analysed.

从强度和变形两方面对试样的结构性进行了研究，分析了原状土和重塑土的变形特性、强度特性和固结特性，揭示了所研究的区域性软土的结构性特征以及这一特征对软土工程性质的影响。

On the side of exterior deformation monitoring, this dissertation proposes and proves the utility monitoring scheme by using general ground monitoring technology and the method of simplification differentiation polar coordinate survey for large span space structure deformation monitoring. On the side of stress measurement, this dissertation proposes an new method of stress measurement suit for mass concrete triangular frame and discusses shrinkage and creep of concrete how to influence stress measurement, and sets up finally a process how to calculate concrete stress through data for piano wire sensors. Finally, on the side of cable forces measurement, this dissertation discusses principle and measurement technology of frequency method.

在外部变形测量方面，本文提出并验证了一套利用常规地面监测技术监测大跨度空间结构几何变形的实用方案及一种简化的差分极坐标测量方法；在应力测量方面，本文提出了一种适用于大型混凝土三角刚架应力监测的新方法，研究了混凝土的收缩徐变对应力测量的影响，并在此基础上建立了一套由振弦式传感器的测试数据推算混凝土结构应力的流程；在索力测量方面，本文探讨了频率法测量索力的原理及实用测量技术。

A finite element numerical model for arch dam-gravity pier-foundation system was established to evaluate the effect of high gravity piers on the stress, deformation and anti-sliding stability of Sizhai arch dam, taking the following factors into account, such as the possible elastoplastic deformation of foundation rocks and the nonlinear interaction between the interfaces of gravity pier-dam foundation, the joint surfaces beneath the right bank, and the interfaces of arch dam-gravity pier.

摘要为评价高重力墩对四寨拱坝的应力变形和抗滑安全的影响，建立了拱坝－重力墩－地基系统的有限元数值模型，其中考虑重力墩－基础、右岸夹层和拱坝－重力墩等交界面的非线性相互作用，以及基岩材料的弹塑性变形行为。

Using cold rolling spinning technology, this technique is a complex course which combines plastic deformation and flow deformation.

三、生产工艺：利用冷轧制旋压技术生产，它是集塑性变形和流动变形的复杂过程，技术水平较高。

The main purpose of this experiment was to design a device, the device plate for the experiment to target in a different effort, the achievement of plate-shaped Cup mutations, testing effort and deformation of the relationship.

本文的主要目的是设计一种实验装置，该装置以板材为实验对象，可在不同作用力下，实现板材的杯突变形，测试作用力与变形量的关系。

The structures, materials and the clearance between cylinder and high pressure plunger piston which is used in the small, oilfree, high pressure field are discussed and analyzed.

在分析滑道变形的基础上，采用尺寸链方法综合分析了滑道体、活塞、气缸等的变形对线性余隙容积的影响，提出了减小线性余隙容积的措施。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。