微裂纹

It is indicated that, the weak discontinuity and the micro-discontinuity have significant effects on stress intensity factors, and the micro-discontinuity is a kind of connection of interfacial mechanical property better than the weak discontinuity.

分析表明，弱/微间断性对于FGMs界面裂纹应力强度因子有着重要影响，而且微间断性是优于弱间断性的一种界面力学性能连接关系。

Using a dedicated high-precision polishing machine will be take high-tech nano-anti-fouling agents dripping polished surface, through repeated pressure grinding head polishing rinding ,polishing let's anti-fouling agents to be better to penetrate into the pores polished internal completely blocked pores polished and micro-cracks, to become the special, continuous nano-membrane, so that polished surface to prevent invasion of the functions of all pollutants, stains with the clean water can touch off; At the same time ,higher gloss, reached 90 degrees Celsius, and has the following outstanding performance

采用一种专用的高精度抛光机将高科技纳米防污剂滴到抛光砖的表面，通过抛光磨头的反复施压，打磨，抛光，将防污剂更好地渗透到抛光砖的毛孔内部，完全堵塞了抛光砖的毛孔及微裂纹，形成一种特殊的，连续的纳米膜，从而是抛光砖表面具有阻止一切污染物入侵的功能，污渍用水一抹就干净；同时光泽度更高，达到90度以上，并具有以下有一的性能

The microstructure of the as-sprayed zirconia coatings was analyzed. The results show that the nanostructured zirconia coating is a typical lamellar structure composed of columnar grain about 100nm in diameter.

结果表明：纳米结构涂层是由直径为100nm左右的柱状晶粒组成的层状结构；涂层中存在大量的微裂纹和分布均匀的细小圆气孔。

Afterreflections on the long history of size effect studies, attention isfocused on three main types of size effects, namely the statistical sizeeffect due to randomness of strength, the energy release size effect,and the possible size effect due to fractality of fracture ormicrocracks.

在回顾了尺寸效应研究的悠远发展史以后，着重讨论了三种主要类型的尺寸效应，即由于强度随机性引起的统计尺寸效应、能量释放的尺寸效应和由于微裂纹或断裂的分形特性可能引起的尺寸效应。

A new qualitative transition zone model was suggested based on analysis of microstructure of concrete and test data.

基于对混凝土微观结构的分析和试验事实，提出了含有微裂纹的混凝土过渡区定性模型。

Noticeably, the spalled surface is formed by the coalescence of roughly parallel microcracks.

层裂表面是由大量相互平行的微裂纹级串连接形成的。

During rolling microcracks in grooves can not be avoided ,and they need to be reground when they are at a certain depth

轧制时轧槽出现微裂纹是不可避免的，达到一定深度（一般控制在0.2mm）时需修磨。

The results show that the graded thermal barrier coatings have typical lamellar structure. The coatings are compact.

结果表明：梯度涂层呈典型的层状结构，涂层较为致密，空隙均匀，同时分布有各向的微裂纹。

Extension of non-destructive evaluation to a spatial resolution of tens of micrometers allowed the first characterization of real microcracks.

延长的无损检测对于几十微米的空间分辨率允许真实际微裂纹产生的第一表征。

Some simplifications are made in engineering in order to obtain the effective modulus which are useful in damage constitutive model.

针对工程需要进行简化，得到了不同应力状态下的有效模量，为建立含微裂纹损伤的本构模型服务。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。