强度

Or heat-pipe evacuated collector tubes with a flat absorber and a semicylindric absorber , relative solar irradiance changing with incident angles on various points of absorber s have been measured respectively by using a solar simulator.

以太阳模拟器为光源，对平面吸热板和半圆柱吸热板热管式真空集热管测定了玻璃罩管内吸热板表面各点随光线入射角变化的相对太阳辐照强度分布，给出了平面与半圆柱吸热板平均相对太阳辐照强度随人射角变化的规律及三维拟合公式，并对两种情况的实验结果进行了初步分析。

This paper introduces calculation of bolt connectin supported by eccentric sheal force on the basis of ultimate strength and compares ultimate strength method with elastic method.

介绍了按极限强度法计算承受偏心剪力的普通螺栓连接计算方法，通过算例比较了按极限强度法和按目前工程设计中常用的弹性法计算的差别。

The variation regularity of the sheat strength index changing with the times of wet-drying cycling under upper loads was gotten in the test, it was also found that the upper load have the obvious restraining to the swelling-shrinkage deformation and the attenuation of shear strength.

得到有荷条件下膨胀土抗剪强度随着干湿循环的变化规律，并发现荷载对土的胀缩幅度和强度衰减有明显抑制作用。

The acidity of HZSM-5 was due to the non-framework aluminum species, i.e., SiAl. The intensity of acid sites of HZSM-5 declined while the quantity of acid sites increased with dehydration temperature, with optimal intensity and quantity of acid sites and maximum toluene conversion of 28.2% at dehydration temperature of 400℃.

HZSM-5分子筛的酸性变化主要是由于非骨架铝物种SiAl的变化而引起，随着脱水温度的升高，HZSM-5分子筛酸中心的强度下降，但酸中心数量增加，当脱水温度为400℃时，HZSM-5分子筛的酸中心强度和数量达到最佳，甲苯转化率为28.2%。

［Objective］To study the biomechanical stability of slidable pedicle screw system with the comparison of slidable pedicle screw system and universal pedicle screw system in intensity,rigidity and other biomechanical functions.［Method］Twelve spinal specimens of the pig were randomly divided into two groups and the schubweg on the vertebra of T12 were measured in different conditions.In the end the intensity and rigidity of two groups were compared which were computed by the schubweg.

［目的］对滑动椎弓根钉系统与通用椎弓根钉系统在脊柱侧凸固定强度、刚度和稳定性等方面进行生物力学比较，以测试滑动椎弓根螺钉内固定系统稳定性的生物力学性能［方法］采用12具猪新鲜脊柱标本，随机分成两组分别测量不同工况下T12椎体的位移，并计算其强度和刚度进行比较。

In addition, other operation condition, such as soapless seeded preparation schedule or without seed, could meet the requirement of the larger particle sizes, broader particle sizes distribution and lower viscosities. Besides the increment of addition rate induces the peel strength and tack decreased and the holding power increased for the PSA tapes that are made from the multicopolymer latexes, the above operation conditions which lead the particle sizes to enlarge would increase the peel strength and tack, and decrease the holding power.

用多元共聚胶乳制备的压敏胶带，除单体滴加速率增加使剥离强度与初粘力下降、持粘力增加外，通常，使胶乳粒径变大的操作条件将使压敏胶剥离强度与初粘力增加，持粘力降低。

The results indicated that with solution time increasing,Mg_(17)Al_(12) phase was dissolved into the Mg matrix and Al_2Ca phase became thinner and shorter,then gradually broken and began to spheroidize;with aging time increasing,Mg_(17)Al_(12) phase was precipitated from the Mg matrix as the form of small particles and Al_2Ca phase was stable and its shape and quantity change...

随着时效时间的增加，Mg17Al12相以细粒状从过饱和的镁基体中析出；而Al2Ca相比较稳定，其数量和形状变化极小。固溶处理后，合金硬度和拉伸强度有所下降；时效处理后，合金硬度增加到峰值后下降，拉伸强度略有升高。固溶、时效处理后轧制AM50和AM50+1Ca镁合金的塑性有所增加；而轧制AM50+2Ca镁合金固溶后塑性有所增加，时效后塑性有所下降。

The result indicated that the stress cracking resistance properties of polymer alloy were greatly improved comparing to pure HDPE, and there was a strong relationship between spherulitic structure, mechanical properties and stress resistant properties.

结果表明，共混体系耐应力开裂性能比纯HDPE有很大提高，而且应力开裂性能与材料的强度和球晶形态密切相关，强度较大且球晶小而不规则者，其耐环境应力开裂性能较好。

Under different forestry work conditions,the EMG amplitudes of Erector spinae were not at the same level in the process of forestry operating,although the average intensity of Erector spinae was probably identical under different forestry work conditions,the EMG amplitudes of Erector spinae distribute in different ranges of MVE%,and the duration spent in the certain ranges of MVE%is not same in the process of entire operating.

在不同作业工况下背部竖脊肌在整个操作过程中工作强度不尽相同，虽然在不同的作业工况下背部竖脊肌平均工作强度可能相近，但是在整个操作过程中，肌肉的用力程度是处于不同MVE%范围内的，且在整个操作过程中肌肉在不同的MVE%范围内所持续时间不同。

The results were showed as following:The work intensity of trunk muscles activities was different in forestry work conditions; work intensity of Erector spinae were the maximum,approaching over 30%Maximum Voluntary Contraction,and EMG amplitudes of Rectus abdominis and Oblique external abdominis were 10%MVC.

研究结果如下：在不同作业工况中，躯干不同肌肉的工作强度存在差异，背部竖脊肌工作强度为最大，均在最大用力的30%左右，其次为腹直肌与腹外斜肌均在最大用力的10%左右。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。