查询词典 hardening of the arteries

The study on the hardening mechanism of the soft soil with the materials shows that the hardening procedure can be divided into three stages:(1). Hydrating and dissolving stage, when material A and material B of the high-water-content and quick-setting materials respectively dissolve and balance in water.(2). Gel and consolidating stage, when the materials hydrate into calcium crystal and the ion exchange and aggregation of soil particles occur in an alkaline environment.(3). the structure developing stage, when the calcium crystals connect each other, absorb and crystallize the water around; the hydrate remnants, calcium hydroxide, carbonate continuously in water and in the air.

本文对高水速凝材料-软土硬化机理的研究表明，高水速凝材料-软土的硬化过程可分为三个阶段：①水化溶解阶段：主要为高水速凝材料的甲、乙料分别与水的溶解、维持平衡阶段；②胶凝固化阶段：主要为高水速凝材料的水化反应生成钙矾石晶体以及土颗粒在碱性环境中发生离子交换和团粒化作用；③强度增长阶段：钙矾石晶体相互连接，大量吸收周围环境中的水分，并将水分变成自己的结晶水；水化残余物氢氧化钙在水中和空气中发生碳酸化作用。

The results show that the microstructures of these three kinds of coating are different from those of the matrix (20 steel). The wear resistance of the flame spray coating is 4. 9 times that of the matrix. This is caused by the existance of hard noncrystal microparticals. The wear resistance of the coating by flame spray welding is 6. 3 times that of the matrix. The reason is that the fine crystal grains can be formed and the solution strengthening, dispersion hardening can be induced by these alloy elements. The resistance of the laser remelt coating is 8. 8 times that of the matrix. This is due to the solution strengthening, dispersion hardening and the existence of very hard dendritic crystal, eutectic and martensite in the microstructure.

作者指出，喷涂层由于层内有一定数量高硬度的合金非晶质点存在，其耐磨性是钢基体的4.9倍；喷熔层内合金晶化产生的晶粒细小，合金元素能起固溶强化作用，也能生成化合物产生弥散硬化作用，故此耐磨性是钢基体的6.3倍；激光涂敷层除所含合金元素产生的固溶强化和弥散硬化作用外，表层组织为高硬度的枝晶+共晶和马氏体，故其耐磨性是钢基体的8.8倍。

The furan resin for casting produced by our factory has a complete category,which has acid hardening self-hardening sand adhesive under normal temperature and thermal setting adhesive.

我厂生产的铸造用呋喃树脂品种齐全，有常温下酸固化自硬砂粘结剂和热固法粘结剂。

Research shows : laser treatment, the hardening layer from the melting zone, transformation hardening and the heat-affected zone, organizations to small uniform martensite, have a high density of dislocations, which are high hardness and wear resistance of the main reasons.

研究表明：激光处理后的硬化层由熔凝区、相变硬化区和热影响区，组织为细小均匀的马氏体，产生了高的位错密度，这些是硬度和耐磨性高的主要原因。

Based on reference to the convention means of the analysis and research for energy spectrum hardening and photon scattering in internal and external, making full use of Beer law and Compton scattering intensity equation, this paper approximatively deduce a theoretical formula of correction of energy spectrum hardening and scattered radiation in Transmission X-ray Industrial Computerized Tomography from a ideal model.

本文在分析研究国内外有关射线能谱硬化修正和散射修正问题的分析方法及其研究状况的基础上，利用X射线透射物质的强度衰减遵守Beer定律和Compton散射强度方程，相继建立了能谱硬化修正模型及其修正方法和散射修正模型及其修正方法。

The characteristic of machined surface of high speed machining aluminum alloy 7050-T7451 is researched by micrographic experiments and analysis. The formation mechanics of machined metamorphism layer has been analyzed and studied. The dislocation-energy model in machined metamorphism layer was established and applied to explain the micrographic mechanics work-hardening using the thermo-mechanical coupling deformation theory and dislocation theory. The experimental results show that the interaction of high dislocation density effect on hardening is more remarkable than that of thermal stress in high speed machining.

利用显微观察方法对铝合金7050-T7451高速铣削加工的工件表面断面和不同深度的表层的微观形貌特征进行系统的研究，确定了高速切削加工铝合金7050-T7451的表面变质层深度为30～35μm；应用位错能量研究了高速铣削加工过程的热力耦合对变质层的影响机理，并通过微观形貌观察证明：与普通切削相比，高速铣削表层塑性变形的能量和位错密度更高；建立了位错密度的加工硬化的动力学模型，研究了加工硬化的热-力耦合形成机理；对微观裂纹的形成机理进行了理论分析，证明位错密度高的高速切削过程中较低速加工更容易产生明显的微裂纹，从分子级乃至原子级的水平进一步揭示高速切削加工表面变质层的形成特征。

Infact , when the machine works on the track which is mudding and hardening , especially on hardening line ,RM-80 can not give full play to its productivity , and sometime the machine can not go forward with excavating chain turnning , which results in a low productivity of not more than 100 meters per hour .

在我们的生产实际中，尤其在板结地段，RM80型全断面道碴清筛机的作业效率就不能得以充分的发挥，经常出现挖掘链转不动、清筛机不前进，或者是作业效率很低，以致于每小时作业速度不足百米的情况。

Most manufacturers use frequency induction hardening process, after the nitrogenation or chromeplating, nitrogenation of thickness of 0.5 to 2.7 0.6 ㎜, chrome-plated layer thickness ㎜ 0.10 ~ 0.15, mainstream technology for after the chromeplating frequency induction hardening.

目前多数厂家采用复合处理，中频淬火后进行氮化或镀铬，氮化层厚度为0.5～0.6㎜，镀铬层厚度为0.10～0.15㎜，主流工艺为中频淬火后镀铬。

The hardening of the steel mayrelate to the shape of strain path under nonproportional cyclic straining. Experimental resultsshow that there exists a coupling between the hardening/softening induced by strainamplitude and that by the strain path.

在非比例循环加载条件下，材料的强化与路径形状密切相关实验表明，应变的幅值和路径方向的变化所造成的强化间存在耦合。

During the non-isothermal crystallization, compared with common PE, the cooling rate had less impact on the crystallization rate of mPE. Second, the sensitivity of the melt viscosity of mPE to the shear rate was poor, and the introduction of long chain branches onto the molecular structure of mPE could improve the dependence of their melt viscosity on both shear rate and temperature. In the extensional rheometric tests, the occurrence of phenomena of'strain hardening' relied on the structure of linear long chains, and mPE didn't show the behavior of'strain hardening', which implied that the melt strength ofmPE was poor.

其中通过共聚方法在mPE分子中引入非线性长支链结构，对提高mPE熔体粘度对温度的依赖性作用较为明显，而对提高mPE熔体粘度对剪切速率的依赖性以及对提高mPE熔体强度作用较弱；采用共混方法在mPE体系中引入线性长支链结构，则对提高mPE熔体粘度对剪切速率的依赖性以及提高mPE的熔体强度的作用较为明显，而对于提高mPE熔体粘度对温度的依赖性作用相对较弱。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。