The viscoelastic properties of a set of star-shaped polystyrenes with 4-12 arms were studied in bulk by the tensile stress relaxation method.

The fixation mechanism of ACQ constituents in treated wood was determined with the help of FTIR analysis and tensile stress relaxation analysis.

通过FTIR光谱分析及应力松弛分析等手段考察了ACQ组分在杉木处理材中的固着机理。

互联网摘选

Experiment Study on the Tensile Stress Relaxation and Creep of the Cancellous Bone of the OS Femoris Neck

股骨颈松质骨拉伸蠕变实验研究

互联网摘选

Tensile Stress Relaxation of DDAC-modified Montmorillonite/ Wood Composite

DDAC改性蒙脱土-木材复合材料的应力松弛

互联网摘选

Finally, the tensile stress relaxation of rock and the accuracy of computation are also mentioned.

对岩石拉应力松弛及计算精度的控制等问题，文中也提出了看法。

互联网摘选

It is indicated that the main factors affecting tensile stress relaxation test at normal atmospheric temperature are the type and precision of tester, loading process of sample, test temperature and data disposal.

指出影响常温拉伸应力松弛试验的主要因素有试验机的类型和精度，试样的加荷过程，试验的温度及数据处理。

互联网摘选

Meimei has a yellow schoolbag.

美美有个黄书包。

互联网摘选

Methods The average dissecting force ( ADF) and interlamellar shear stress of each interspace in the media were measured using a tensile strength tester, and the the final shape-changed strength ratio of each layer was calculated before and after melting the tissue with collagenase and elastase.

方法测定人主动脉中膜各层间单位分离力、剪应力和胶原酶和弹力蛋白酶酶解前后主动脉壁各层的屈服形状改变比能。

互联网摘选

Fibre tensile strength tester

纤维拉伸强力试验仪

互联网摘选

Bolting mechanical properties are tested by the tensile strength tester, impact tester and hardness testers, to guarantee the detect precision.

连接副机械性能检测，采用微机控制的拉力机、冲击试验机及各种硬度计以保证测试精度。

互联网摘选

When the tensile stress of the core layer is bigger than the tensile strength perpendicular to grain of wood, the internal crack will appear.

心层的拉伸应力与木材内裂有关，当心层拉伸应力超过木材横纹拉伸极限强度时，木材产生内裂。

互联网摘选

Method of testing in tensile strength perpendicular to grain of wood

GB/T14017-1992木材横纹抗拉强度试验方法

互联网摘选

The basic density, compression strength parallel to the grain, and tensile strength parallel to the grain and bending strength increase with the age, and reach their relative stableness values at the age of 3-5 years.

基本密度、顺纹抗压强度、顺纹抗拉强度和抗弯强度都随竹龄增加而增加，至3～5年较稳定。

互联网摘选

The CNC processing technology of the wood testing part in tensile strength parallel to the grain

模板的加工橄榄球的加工木材顺纹抗拉强度试件的数控加工技术

互联网摘选

Because of the constraint of experimental equipment and technology, there are quite few studies on the crack propagation mechanism of rock mass under tensile stress. Compared to the compressive strength, the tensile strength of rock mass is very low.

目前压缩条件下岩体中三维裂隙扩展演化机制的试验研究已有一些，但由于试验设备和技术方面的制约，拉伸条件下相应的成果很少。

互联网摘选

When the pressure reaches the breaking pressure, along the direction of the arrangement hole, the Y-direction tensile stress exceeds the tensile strength of the rock, so rock fracture.

当压力达到破坏压力时，模型沿布置孔的方向的Y方向拉应力超过了岩石的抗拉强度，岩石破裂。

互联网摘选

Testing results indicate that the threshold pressure of jet aided drilling is 4.1 times of rock tensile strength and 26% of rock compressive resistance, also related with the bottom hole pressure difference and rock physical properties.

实验结果表明，射流辅助钻井的门限压力是岩石抗拉强度的4.1倍，是抗压强度的26%；还与井底压差及其它岩石物理力学性质有关。

互联网摘选

The point load testing as a simple, rapid, reliable and cheap method can determine indirectly the tensile and compressive strength of rock in the field.

岩石的点荷载实验法简便、迅速、可靠、成本低，能在现场间接确定矿岩抗拉强度与抗压强度。

互联网摘选

The tensile strength of the rock is not only one of the indicators of the important mechanical properties of the rock, but also a controlling parameter of the security and stability analysis in rock structure design.

岩石的抗拉强度是岩石的重要力学性质指标之一，也是岩石结构设计中安全与稳定性分析的一个控制性参数。

互联网摘选

And the density, cohesion, internal friction angle, compressive and tensile strength of the rock in XinQiao Pyrite iron mine are determined. 3.

测出了矿区主要矿岩体的密度、内聚力、内摩擦角、单轴抗压强度和抗拉强度等物理力学参数。

互联网摘选

Diametral point load test is a very promising, simple and accurate method for obtaining compressive and tensile strength data of rock core.

用岩芯进行径向点荷试验，是简单而较精确地获得岩石抗拉、抗压强度的极有前途的方法。

互联网摘选