硬化体

It was shown by the study that relationship of unadvantangeous porosity and the total porosity of hardened cement paste accords with logarithmic curve. The flexural strength and abrasion resistance of mortar can be roughly forecasted through calculating the density of mixture system.

研究表明，在条件一定情况下，浆体硬化后期的有害孔隙率与总孔隙率之间服从对数曲线关系；通过计算混合体系密实度的大小可以初步预测砂浆抗弯强度及耐磨性的优劣。

Of higher carbon content of martensite plates will be generated, more obvious hardening of the weld.

对含碳量较高的钢板会生成马氏体组织，焊缝的硬化比较明显。

CT scanning can discover the characteristic features of tuberculosis of spine,CT is superior to conventional roentgenography in delineating the extent of body destruction,involvement of the spinal canal and existence of paraspinal soft tissue masses,and is superior to MRI in delineating sequestra and sclerous bone and calcification of cold abscess.

CT能够较好地显示脊柱结核的特征性表现，特别是在椎体及附件骨质破坏程度、侵及椎管情况、椎旁软组织显示方面优于常规X线平片检查，对死骨片、骨质硬化及冷脓肿钙化的显示优于磁共振成像。

Three kinds of cutting material were selected to machine stainless steel machining experiment such as ceramic cutting tools, cermets cutting tools and coated carbide cutting tools, in which the best range of each kind of tool material was founded. For example, LT55 was suitable to be machine lCrl8Ni9Ti as the cutting speed surpasses 120m/min and have a good wearable property.(3) Surface roughness was measured under different cutting conditions. Feed rate played the most important role in impacting surface roughness, and then cutting speed.(4) Chip patterns in different cutting speed with various cutting materials were analyzed. With the increase of turning speed, chip became shorter and was easy to be broken. For instance, serration chip appeared in high sped turning stainless steel with LT55;(5) Work hardening of austenitic stainless steel was analyzed.

陶瓷刀具LT55适合在Vc=120m/min以上切削加工不锈钢，耐磨性好；③通过试验研究了不同刀具材料高速车削加工1Cr18Ni9Ti不锈钢时的表面粗糙度，其中进给量对表面粗糙度的影响最为显著，其次为切削速度；④分析了不同刀具材料在不同切削速度下加工1Cr18Ni9Ti不锈钢的切屑形态，随着车削速度的提高，切屑变短且易断屑，其中LT55陶瓷刀具切削加工时产生了锯齿状切屑；⑤分析了奥氏体不锈钢的加工硬化机理及其对刀具磨损的影响；⑥根据试验结果分析在不同切削条件下切削不锈钢的刀具磨损形式及其磨损机理。

The main methods improving the strength of galvanized wire for bridge cable are to improve the strength of sorbite wire rod, increase drawing hardening effect and decrease strength lose in the course of galvanizing.

提高桥梁缆索镀锌钢丝强度的主要方法是提高索氏体盘条的强度、提高加工硬化效果和减少热镀锌过程的强度损失。

The fracture mechanism of TWIP steel (steel1#) which contained second phase was that the microvoids nucleated due to the decreasing of binding force between austenite and second-phase or the second phase dehiscence caused by strain hardening, then the microvoids grew, got together and broke by the stress concentration during deformation.

含有第二相的TWIP钢（1＃钢）的断裂机制为：第二相和奥氏体相界面聚合力的减弱或第二相本身加工硬化导致的开裂促使微孔形核，形变过程中产生的应力集中使微孔长大、聚合直至发生断裂。

The fracture mechanism of TWIP steel (steel1#) which contains second-phase is: micro-voids nucleate due to binding force weaken between austenite and second-phase or second-phase dehiscence itself caused by strain-hardening. Micro-voids are formation, growth, coalescence and break by the stress concentration during deformation.

含有第二相的TWIP钢（如1＃钢）的断裂机制为：第二相和奥氏体相界面聚合力的减弱或第二相本身加工硬化导致的开裂促使微孔形核，形变过程中产生的应力集中使微孔长大、聚合直至发生断裂。

The effects of alloy elements on the matrix of austenitic manganese steel and its behavior of work hardening were studied in this thesis, establishing the relations of valence electron parameter and macro-property.

本文研究了合金元素对不同成分锰钢基体的作用及其对加工硬化行为的影响，建立了微观价电子参数同宏观性能的联系。

objective to study mri diagnostic value on multiple sclerosis.methods mri examination data of 31 patients with multiple sclerosis were analysised retrospectively.results total 184 lesions were detectived in 31 patients.most lesions were located on white watter area beside the lateral ventricle,and a few lesions were located on the spinal cord,cerebellum,brain stem and corpus callosum.the shape of lesion can be circle or ellipse.the lesion showed as slightly long t1 and long t2 signal.the acute stage lesions can have enhancement.conclusions ms have characteristic findings on mri image.mri can show the patholoic changes,and provide strong evidence for clinic diagnosis of multiple sclerosis.

摘 要］目的：探讨多发性硬化（muliplle sclerosis，ms）的mri特征表现及其诊断价值。方法：回顾分析31例临床诊断为ms患者的mri检查资料。结果：31例共发现病灶184个，病灶于侧脑室旁白质区、半卵圆中心及皮层下区最多见，其次见于脊髓小脑、脑干及胼胝体，部分可见视神经受累，病灶呈卵圆形或圆形稍长t1、长t2信号，矢状位像见病灶与侧脑室垂直，急性病灶增强扫描有的可呈结节状、环状或斑点状强化。结论：在mri图像上ms有特征性表现，mri能反应ms病理变化，为临床诊断ms提供可靠依据。

The results show that microstructure of the surface layer after electron beam irradiation consists of four zones,i.e.surface melting zone,phase transformation hardening zone,transition zone and base alloy.

研究结果表明，Cr12MoV模具钢经电子束表面熔凝处理后的显微组织可以明显地划分为四个区域：表面熔化区、相变硬化区、过渡区及合金的基体。

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。