SEM micrographs showed that the films were smooth and crack-free.
扫描电镜分析表明，膜的表面平整，无裂纹。
2
With strong adhesion and color solid focus, waterproof, impermeability, crack-free, anti-mildew, anti-aging has the ideal decorative effect.
具有极强的附着力和颜色固着力，防水、抗渗、无裂纹、抗霉变、抗老化具有理想的装饰效果。
3
Crack-free surface that is formed in ductile regime of glass can be obtained under conventional cutting conditions if the tool parameters are chosen properly.