Because hardness is the resistance to permanent indentation, we can liken it to performing a compression test on a small volume in a block of material ( Fig.2.13c). 因为硬度由是利用试样永久变形而测得的,因此我们也可以在一个小的空间里使用挤压的试验方法。
The cure characteristics, mechanical properties, resistance to heat and aging and compression set properties of ACM, FKM and their blends of varying compositions were studied. 研究了不同并用比的氟橡胶(FKM)和丙烯酸酯橡胶(ACM)并用胶的硫变特性、物理机械性能、耐老化性、热稳定性和压缩永久变形性能。
Its performance has been tested to the extent that the flexible sub can provide enough resistance to tension, compression and torsion. 并对其进行了性能检测,证明其中的挠性接头具有足够大的抗拉、压、扭能力。
Obtain scion and stock's security compression ratio through the experiment and the data analysis, the biggest resistance to cutting, drills the hole of resistance, the uniform pressure and the compression quantity, and takes the design foundation data. 通过试验与数据分析得出接穗和砧木的安全压缩比、最大的切削阻力、打孔阻力、稳定压力和压缩量,作为嫁接机的设计基础数据。
The dislocations motion must overcome greater resistance and dislocations move in a form of cross-slip and shorter distance, because the normal γ matrix channels of ( 100) planes are subjected to compression stress. 由于(100)晶面的基体通道受压应力,位错运动阻力大,密度小,位错运动多以交滑移和Orowan弓入方式进行;
The results have shown that MCA can increase tensile strength and hardness of NBR and also improve the properties of resistance to heat aging and compression set of NBR as well. 结果表明金属活性助剂MCA,在不同的硫化体系中可提高丁腈橡胶的拉伸强度、硬度,改善丁腈橡胶的耐热老化性能及压缩永久变形性能。
REASSEMBLING THE DIGITAL MULTIMETER AND MEASURING THE INTERNAL RESISTANCE OF A POWER SUPPLY Utilizing variable frequency transducer to get the displacement signal directly, the multimeter can show the tension or compression deformation after the micro-processing of signal. 本仪表采用电感调频式传感器直接输出表征位移的数字信号,经单片机处理后,即可显示拉压变形量。
The resistance to shear by the direct shear test and the triaxial compression test in soil test is compared and analyzed. The different test method is adopted about the different work. 对土工试验中直接剪切试验与三轴压缩试验所得的抗剪强度进行了比较与分析,从而对工程不同要求提出不同的试验方法。
Experimental results also demonstrate that this scheme can make the quality of embeded watermarking images very well and strengthen the watermarking resistance to JPEG compression, low-through filter and noise. 试验结果表明使用该算法嵌入水印的图像具有很好的图像质量,对各种程度的JPEG压缩,低通滤波,噪声干扰有很好的抵抗性。
Boron-Doping Technology and Micro-Structure of Die Steel and Its Resistance to Repeated Shock Compression 模具钢的渗硼工艺和组织与多冲压缩性能
Considering that disk piles possess markedly resistance to compression, extraction and torsion, it is put forward that straight piles can be substituted by disk piles to form a disk pile-soil-superstructure system. 根据支盘桩抗压、抗拔及抗扭曲的阻抗性能,提出了由支盘桩代替直杆桩,组成支盘桩-地基-上部结构体系,并对该体系进行了理论分析。
In addition, the buckling resistance of a circular aluminium alloy tube to axial compression load can be effectively increased when its outside is wound with carbon fiber. 此外,在铝合金细长圆管的外壁复合缠绕碳纤维,能有效地提高圆管对轴向压载荷的抗失稳与抗屈曲破坏能力。
The resistance of outer longitudinal walls to crack is enhanced when they are bearing walls, because the vertical compression stress acted on cross-sections of walls increases their resistance to shear. 纵墙承重时外纵墙开裂性提高是由于砌体截面的垂直压应力对砌体抗剪强度的提高。
Studies on the genetical effects of the resistance to radial cracking and tolerance to compression in tomato fruits 番茄果实抗射裂性和耐压性遗传效应研究
Research on High Module Polymer Matrix and High Resistance to Compression Composites 高模量树脂基体及高抗压复合材料的研究
The algorithm has a high resistance to JPEG lossy compression capacity, tampering with positioning accuracy and security. ( 2) Proposed DWT domain watermark authentication algorithm based on image edge features. 算法具有抵抗高度JPEG有损压缩的能力,篡改定位精确,安全性好。(2)提出了基于图像边缘特征的DWT域水印认证算法。