在紫外光的照射下检查是否有细小的裂纹和腐蚀孔。
Under the irradiation of uv light to check whether there is a tiny cracks and corrosion holes.
将小波变化得到的动力响应的能量谱作为损伤检测的特征量，具有很好的灵敏度，能检测到复合材料容器中非常细小的裂纹。
The energy spectrum variations as the damage dynamics feature have good sensitivity. Therefore it can detect very tiny cracks in cylindrical composite vessel.
像是什么也没让他抓住似的：在一块土疙瘩上支起半边靴子，然后抓向某个“污点”或是某道细小的裂纹，最后突然弹开岩石上的双臂，朝某个方向直扑过去。
He seemed to be catching on nothing: propping his boot on a pimple, gripping a "smear" or a hairline crack, freeing both arms from the rock to make a lunge.
深层养护：稳定皮革内部的纤维分子结构，遮盖细小裂纹。
Deep care and maintenance: stabilize the fiber element structure inside the leather and cover minute fissures.
板卷产生边部裂纹的主要原因是：连铸坯表面边部横裂纹（包括深的振痕）和边部的细小纵裂纹，在加热和轧制过程中不断扩展；
The main reasons of the edge cracking are: expanding of horizontal cracks (including deep oscillation imprint) and fine vertical cracks of cast blank during reheating and hot rolling;
板卷产生边部裂纹的主要原因是：连铸坯表面边部横裂纹（包括深的振痕）和边部的细小纵裂纹，在加热和轧制过程中不断扩展；
The main reasons of the edge cracking are: expanding of horizontal cracks (including deep oscillation imprint) and fine vertical cracks of cast blank during reheating and hot rolling;
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