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During the history of the ripple structure was formed, the dislocation-like, crack and oriented surface crack easily happed in the ripple structure.

另外，大面积涟漪结构在薄膜表面形成过程中，会在PDMS弹性薄膜内强度较弱之分子链结构与缺陷处，产生类差排、裂痕及排向表面裂缝等缺陷。

In the induction caving roof, the quantitative inspection have been done by the digital digital panoramic borehole camera system. The quantum study are applied to inspecte the crack occurrence and width from the corresponding relation between 3-D image and its spatial coordinates. And the system provide the method to calculate, account and analysis of the crack parameter.

采用数字式全景钻孔摄像系统宏观探测顶板围岩在耦合诱导致裂失稳崩落的裂隙形态，从裂隙的三维图像与空间坐标关系，对裂隙的产状、隙宽和迹长等参数进行了定量的数字化探测、处理与还原。

The enrichment of point passim will decrease bonding force of atom at the micro defect crack tip, and the micro defect crack grows.

本文将这种描述疲劳裂纹内部萌生过程的微观模型称为"点缺陷沉淀"机理。

Due to AACs unique cell structure and absorbing water propriety, However, There are still many problems, when we adopt ordinary mortar to construct and plasterer ash, such as wall crack, big area of layer of plasterer ash crack and partially hollow drum, even according to present AAC technical specifications, for the actual operation craft is so complicated that It is very to guarantee each preface quality.

然而，由于加气混凝土本身特有的多孔结构和吸水特性，采用普通砂浆砌筑与抹灰，即使按现行加气混凝土砌块施工规定的方法施工，由于实际操作工艺复杂，各工序质量难以保证，依然有墙体开裂，抹灰层大面积龟裂和局部起鼓、空壳、脱落等现象。

Admixing vegetable fibers into concrete can reduce the plastic constraint crack at early age and improve its crack resistance performance greatly.

植物纤维的掺入可减少混凝土早期的收缩裂缝，并大大改善混凝土的抗裂性能。

The results indicate that, the inte r face of laminated composites plays a significant role in fatigue crack growth. T he fatigue crack propagation is arrested by the interface delamination in the ex plosive bonded LY12 laminate.

结果表明，层合板中的层间界面性能对其疲劳性能具有重要影响，在LY1 2 爆炸复合板中，垂直板面L-S取向和L-T取向的疲劳裂纹在扩展过程中都发生了明显的止裂。

In order to know the character of them,the contact between them and the crack, and their forming process,we designed a special experiment- prefabricate crack in the shaped blank.

为了弄清此类异质颗粒的性质及其与裂纹之间的联系，以及具有该相同特征的裂纹组织的形成过程，特设计预制裂纹实验方案进行验证，通过试验研究，发现了异质颗粒的性质及其与裂纹之间的联系，判断出具有该相同特征的裂纹组织的形成过程，总结出了影响异质颗粒形成及大小的主要因素。

The relative formulas between crack density and elastic modulus shows the effect of crack on rigidity of pressure tank.

用压力容器的弹性模量定义损伤变量，进而建立了弹性模量和载荷循环次数之间的关系式。

It is found that the wing crack extend along a curved path and gradually approximate to the line which passes the middle point of the main crack and is parallel to the direction of maximum principal stress.

采用数值和试验的方法对翼型裂纹的扩展路径进行分析，发现单轴下张开型裂纹的翼型裂纹的扩展路径逼近于过原主裂纹中心点、平行于最大主应力的一条直线。

If θ=0?＃, it means that whisker axis is perpendicular to crack face, the energy dissipation caused by whisker-bridge join in zone of crack end achieves its maximum and the reintoughening effect of material achieves the best of all; along with growth of angle θ, the maximum principal stress in the matrix of whisker roots increases, when it achieves its limit, the whisker will be broken and orientation effect will be weakened.

当添加晶须与裂纹面法向形成角度θ时，随角度θ的增加，裂纹尖端拉应力增加。当添加角度较大时，晶须根部基体承受了较大的应力，易遭到破坏性崩裂。同时，晶须内部主应力与晶须轴向之间的角度也随角度θ的增加而增加，造成晶须折断，致使造成晶须拨出的体积分数φap减小，降低了增韧效果。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。