The comparative investigation of the characteristics of deformation and AE were conducted and the results are presented as followed: 1. The characteristics of rock AE are correlated to the strength, joints, cracks, and the size and hardness of crystalline grain. 2. The sequence of AE can be divided into four phases: beginning phase, tempestuousness phase, drop phase and dreariness phase. The loss and the duration of the phases are correlated to the rock character and flaws in the rock. 3. The AE rate characteristics are not almost concordant with the AE energy rate. 4. Besides the homogeneity, the strength of rock contributes the activity of AE. The higher the strength is, the lower the activity is. 5. There is a dreariness phase before the failure of most kinds of rock. 6. Whether the precursor is obvious is correlated to rock the character, and the precursor of AE rate is more apparent than the precursor of AE energy rate comparatively.
通过对比研究这六种不同岩石的变形和声发射特征发现，岩石声发射受到岩石强度、节理裂隙和晶粒软硬大小等的影响；岩石声发射过程存在初始区、剧烈区、下降区和沉寂区，各个阶段是否存在及持续时间与岩石强度、内部缺陷等有关；岩石的声发射事件率特征与能量率特征并不完全一致；岩石的声发射活性除了受其均匀性影响外，还受到岩石的强度影响，强度越小，声发射活性越强；大多数岩石破坏前存在一声发射沉寂区；岩石的破坏前兆是否明显跟岩性有关，相比较而言，岩石破坏时的声发射率前兆比声发射能量率前兆更为明显一些。
The influence of the amount of Fe-Mo-B pre-alloyed powder on the mechanical properties of warm-compacted iron-based P/M material with sinter hardening process, such as sintering-density, dimensional change rate, apparent hardness, tensile strength and microstructure, was studied.
研究了Fe-Mo-B预合金粉的含量对温压铁基材料烧结硬化后试样的密度、尺寸精度、表观硬度和抗拉强度以及显微组织的影响。
The hardness that helped make him the teenage star of England's 1998 World Cup side was apparent in his move last summer from Newcastle to Manchester United, which prompted cries of betrayal in Liverpool and caused some United fans to ask why Sir Alex Ferguson was importing an Anfield legend.
欧文的性格具有一定的适应性，他的坚强帮助这位98世界杯一战成名的球星在去年从纽卡转会到了利物浦死敌曼联队，而这一转会也让许多曼联队球迷对爵爷这一引进产生质疑，这种地域间的仇视有时也让许多球员陷入纷争。
The interfacial diffusion of alloying element is an important factor to microstructure, apparent hardness and interfacial bond strength.
元素在界面两侧的扩散是影响材料显微组织、表观硬度及界面结合强度的关键。
Under a low load of 50 - 100 N, there was not apparent influence of microstructure on wear loss. With increasing the load, the microstructures markedly affected wear loss. The wear loss increased with increasing tempering temperature and reducing hardness.
在50-100N的低载荷下，不同回火组织的磨损失重变化不大，随着载荷增大，回火组织对磨损失重有显著影响，磨损失重随着回火温度的升高和硬度降低而增加。
With the increase of sintering temperature, the apparent porosity of sample decreases, while bulk density, hardness and compressive strength increased.
随烧结温度的升高，材料的显气孔率降低，而体积密度、硬度和抗压强度均增加。
The results showed that the copper ions in a certain amount can increase plating rate, increase deposits hardness, but the apparent was poor, and the corrosion resistance weakened with the increasing concentration of copper ions in the bath.
铜离子在一定量范围内可以提高镀速增加硬度，但是表观不佳，耐蚀性也随着铜离子浓度的增加而减弱。
Experimental method is used to study the effect of die geometric variables, rivet geometric variables, rivet hardness and sheet thickness on the riveting load and riveted joint apparent quality in the riveting process.
运用有限元方法和实验方法，全面分析了模具几何参数、铆钉几何参数和硬度以及板料厚度对铆接过程中铆接力和铆接接头表观质量的影响。
The influence of content of hard segmer on particle size of emulsion, apparent viscosity, moisture absorption of film, hardness and mechanical properties is discussed.
考察了硬段含量对乳液粒径、表观黏度、膜吸水性、硬度、力学性能的影响，并通过动态力学性能测试（DMA）研究了软段和硬段的玻璃化转变温度。
The iodine number, hardness, apparent density, carbon tetrachloride adsorption, specific surface area, pore size distribution, and CO2 adsorption of the activated carbons were determined.
测定了活性炭的比表面积、微孔孔容、碘吸附值、四氯化碳吸附值、CO2吸附量、堆积密度等指标。
An energy balance analysis based on elastic/plastic indentation model was applied to analyze the apparent ISE and to extract the load-independent hardness from the experimental measurements.
用弹/塑性模型Knoop压痕能量平衡对表观压痕尺寸效应进行分析，并从实验测试结果分析得出与载荷无关的显微硬度值。
Results show that higher sintered density can be obtained for Fe-Ni-Mo-Cu prealloyed powder with lower Cr addition at 1120 ℃, and the microhardness increases with the addition of Cr and apparent hardness increases with increasing sintered density.
结果表明，添加少量铬的Fe-Ni-Mo-Cu预合金粉末，在1120℃下烧结，可获得较高的烧结密度；微观组织硬度随铬量的增加而增加，表观硬度随密度的增加而增加。
Apparent hardness could be 44 HRC and tensile strength could be 1434 MPa.
表观硬度最高可达44HRC，抗拉强度为1434MPa。
Their apparent hardness HRB increased by about 50%;
表观硬度增加约50%；