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The effects of synthetic conditions on the chemical composition of the moisture- curable polyurethane liquid rubber and physiochemical properties of the cured rubber, the effect of storage temperature on the pot-life of the uncured rubber, and the effect of curing time on the tensile strength of the cured rubber are investigated.

本工作研究了通过空气中的水分固化的一液型聚氨酯液体橡胶的组成、合成条件等因索对固化胶物理机械性能的影响，并讨论了温度对保存时间和固化胶放置时间对强度的影响。

The corrosion fatigue crack growth and near-threshold characteristcsof high tensile steel HT60 were investigated by using the compact specimens underexposure to synthetic sea water. The da/dN vs △K_ relation in air may be conser-vetivel estimated for that in sea water. In the high △K region with high stressratio, owing to the acceleration of crack growth promoted by stress-induced dissol-ution, the crack opening stress intensity factor K_ represents only the result ofcrack surface in contact with corrosion products, so as to give an overestimation ofK_ at crack tip.

对高拉力钢HT60的腐蚀疲劳裂纹扩展特性和门槛值区域特性，采用紧凑拉伸试件在人工海水中进行了实验和研究，结果表明：在空气中的da/dN与ΔK_关系可以作为在海水中的da/dN与ΔK关系的一个偏保守的预测；在高应力比的高ΔK区域，由于应力诱起溶解促进了裂纹扩展的加速；该裂纹开口应力强度因子K_仅反映了裂纹表面同腐蚀生成物接触的结果，从而导致了K_在裂纹尖端的偏大的估计结果。

Indoor flexural fatigue tests are carried out, the results are analyzed and two types of double logarithm fatigue equation under different stress level andequivalent stress level are got. Using the fatigue equation, the fatigue performance of porous concrete and common semi-rigid base materials and cement concrete are compared, the fatigue stress coefficient which is used in the load stress calculation for porous concrete as undersurface of cement concrete pavement and the tensile strength structure coefficient which is used in the flexural stress check for porous concrete as base of asphalt pavement are obtained.

进行室内小梁弯拉疲劳试验，对疲劳试验数据进行分析，得出多孔混凝土不同失效概率下两种形式的双对数疲劳方程，利用疲劳方程，将其疲劳性能与常用半刚性基层材料和水泥混凝土进行比较，还得出了多孔混凝土作为水泥混凝土路面下面层荷载应力计算的疲劳应力系数，和作为沥青路面基层层底弯拉应力验算的抗拉强度结构系数。

Using the fatigue equation, the fatigue performance of porous concrete and common semi-rigid base materials and cement concrete are compared, the fatigue stress coefficient which is used in the load stress calculation for porous concrete as undersurface of cement concrete pavement and the tensile strength structure coefficient which is used in the flexural stress check for porous concrete as base of asphalt pavement are obtained.

进行室内小梁弯拉疲劳试验，对疲劳试验数据进行分析，得出多孔混凝土不同失效概率下两种形式的双对数疲劳方程，利用疲劳方程，将其疲劳性能与常用半刚性基层材料和水泥混凝土进行比较，还得出了多孔混凝土作为水泥混凝土路面下面层荷载应力计算的疲劳应力系数，和作为沥青路面基层层底弯拉应力验算的抗拉强度结构系数。

The effect of micro-damage on the plastic instability in uniaxial tensile testing has been studied in this paper.

本文研究了单轴静拉伸条件下微孔损伤对塑性失稳的影响。

The result of uniaxial tensile test on loess is very consistent with that of the numerical simulation analysis.

单轴拉伸试验结果与数值仿真分析结果具有较好的一致性。

But it is difficult to make certain proper reference state in the uniaxial tensile test ,and there has not been an acceptable formula to express its stress-strain relationship.

在对SIS的单轴拉伸测试中，很难确定合适的参考状态，也没有一个被广泛认可的公式来表达其应力应变关系。

The tensile properties of pure glass fiber unidirectional composites prepared under different conditions are analyzed.

同时对不同制作条件下纯玻璃纤维单向复合材料的拉伸性能进行剖析。

Therefore the tensile strength data of sized and unsized carbon fibre can be analyed by this means.

炭纤维属于脆性材料，其拉伸强度具有分散性，基本服从Weibull统计分布。

When the buffer layer of the transferred LED film was eliminated, the tensile stress in GaN layer was shown to increase. However, the compressive stress in InGaN well layer was kept unvaried.

去除转移后LED薄膜中过渡层后，GaN层受到的张应力变大，而铟镓氮层受到的压应力基本不变。

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。