查询词典 plasticity

Finally, sciophilous species Saussurea macrota and light-loving species Salvia przewalskii presented larger plasticity indexes in biomass allocation and morphological characteristics than neutral-habitat species Senecio scandens.

喜阴物种大耳叶风毛菊和喜光物种甘西鼠尾草比中性生境物种千里光表现出了较大的性状特征和生物量分配的可塑性指数。

The shearing stress on an octahedral plane is used as a rarameter to analyse crack -producing problems under mixed mode fracture and the crack producing direction is considered as the direction with mimimal displacement from crack tip to plasticity boundary.

本文采用剪应力强度因子作为断裂的参数，分析复合型断裂问题，认为裂纹扩展方向为塑性区最短距离方向。

It has been found that there are some texture flaws such as large grain、badly distorted twin and streaky structure. But recrystallization grains ofaround 19μm in diameter on average are obtainable through heat treatment at300℃for 30min by air-cooling, meanwhile the twin and streaky structurethat would weaken the plasticity of alloy are eliminated; significant elementsare holding temperature、holding time、cool-down methods. Mechanicalproperties of tube are obtained, simple tension elongation ratio of arc testsample increases from 10.8% to 20.1%, elongation ratio with elastic internaldie of tube increases from 8.0% to 14.9%.

研究结果表明：挤压成型的AZ31镁合金管材组织中存在变形程度很大的孪晶、大尺寸晶粒、丧失了进一步变形能力的条带状组织等易导致后续塑性加工时变形不均，引起断裂的组织缺陷；采用最佳等温热处理工艺以20℃／min加热至300℃保温30min后空冷处理可以使试样平均晶粒直径从挤压态的50μm细化为19μm，同时基本消除上述组织缺陷；明显影响热处理效果的因素为保温温度、保温时间、冷却方式；室温下，采用最佳工艺热处理前后管材弧形试样的单向拉伸伸长率由10.8％提高至20.1％，管件的自由胀形极限伸长率由8.0％提高至14.9％。

Comparing with flower,stem and leaf,the structure of root is simple butpossesses developmental plasticity.Therefore,it is an ideal material forinvestigating the developmental molecular mechanism.

但与花、叶等器官相比，高等植物根的结构相对简单，具有发育的可塑性，是探讨植物发育分子机理的一种较理想的研究材料。

A1l the thick adsorption layer,large space steric hindrance,thick solvate layer and stable ξ-potential of ASP adsorbed on cement particles resist the flocculation of cement particles.In addition the early stage hydration of cement is restrained because the—OH ,—NH2 in ASP can suppress the formation of hydrated products such as C-S-H ,Ca2 and ettringite crystals through forming unstable complex compound with Ca2+.So ASP has excellent plasticity-retention capability of concrete.

由于ASP在水泥颗粒表面的吸附层较厚、空间位阻较大、溶剂化层较厚及ξ-电位较稳定等原因，阻碍了水泥颗粒间的凝聚；同时由于ASP含有的—OH，—NH2等官能团与水化产生的Ca2+形成不稳定的络合物，抑制了水化产物C-S-H，Ca2和钙矾石等结晶体的形成，从而抑制了水泥的早期水化，故ASP具有良好的保塑性能。

Various kinds of hot plasticity melt and receive and deal with with ultrasonic wave and need and add flux, splicer pharmaceutical or other to assisted and sampled by glue one.

超声波焊接是熔接热塑性塑料制品的高科技技术，各种热塑性胶件均可使用超声波熔接处理，而不需加溶剂，粘接剂或其他辅助品。

The cyclic creep tests at room temperature on MTS material testing system for automobile spring steel and bolt steel under different heat treatments and different stress conditions have been conducted to investigate the micro plasticity behavior of the steels.

为研究汽车用弹簧钢与高强度螺栓钢的微塑性服役行为，在MTS材料试验系统上进行了不同钢种在不同强度水平和不同循环应力条件下的室温蠕变试验。

Then, the result from the least square method is used as initial values of elastic visco-plasticity parameter. The Kalman Filtering stochastic back analysis is carried out.

利用最小二乘目标函数对边坡岩体弹-粘塑性参数进行了确定性反分析计算，并将反演结果作为参数初始值进行了岩体参数的Kalman滤波随机反分析计算。

These research results supply a theory gap in the field, enrich and develop sheets stamping forming theory and plastic forming theory, widen the use region of stability theory and plasticity theory, and are one of main innovations in this paper.

此研究成果填补了这一领域的理论空白，丰富和发展了板材冲压成形理论和塑性加工理论，拓展了稳定性理论和塑性理论的应用范围，是本文的主要创新点之一。

Changes in the number and function of synapsis can cause changes in synaptic plasticity, thereby can affect learning and memory.

突触的数量和功能发生改变可引起突触可塑性的改变，进而影响学习记忆能力。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。