Its principle mainly lies in: the cement in the concrete is gelatinized material felt the fibers, these fiber similar to very small distributed reinforcing steel bar in function, consuming the energy of the concrete cracking, raising the concrete toughness, reducing the concrete segregation and bleeding, thus they control the expansion of the internal microscopic cracks of the cement, and raise the concrete crack resistance.
其原理主要在于，混凝土中水泥作为胶凝材料来握裹纤维，这些纤维起到微细配筋作用，消耗混凝土变形开裂能量、提高韧性、撑托骨料和减少混凝土离析泌水，从而控制水泥基体内部微细裂的生成和扩展，提高混凝土的抗裂性能。
The microscopic examination indicated that the cracking condition of plant cells by improved method was better that that by normative method.
镜检表明，改进法的植物细胞破碎情况比规范法更佳。
After cracking, coating inorganic waterproofer on experimental specimens again, the width of crack reduces slightly (6) SEM microscopic analysis shows that, compared with the baseline group, the internal porosity decreases, inorganic water proofer has filling and close-graining effect.
开裂后，再次涂刷防水剂，试件的裂缝宽度稍有减小。（6）通过SEM微观分析表明，与基准组相比，内部的孔隙有所减少，无机防水剂对于混凝土试样有填充密实的效果。
The microscopic deformation of calcareous sand particles is the coupled action of particle failure and sliding. The cracking and sliding phenomena are described by elastic damage model and plastic bounding surface model respectively.
针对钙质砂在低应力水平下的颗粒破碎现象，指出其变形在微观上存在颗粒破碎与滑移两种机制的耦合作用，并分别采用弹性损伤模型和边界面塑性模型予以描述。
The effects of three kinds of combined weld on the weld crack of medium-carbon alloy steels are studied by using slit type cracking test and microscopic analysis method.
采用Y形坡口裂纹试验和显微分析方法，研究了三种不同的组合焊缝对中碳合金钢焊接裂纹的影响。