检查车轮，车架，等变形，弯曲裂纹等情况。
Check wheels, frame, and so deformation, bending cracks and soon.
纤维可以使混凝土弯曲并出现头发丝细的裂纹，而不是直接裂出口子。
The fibers allow the concrete to bend and crack in narrow hair-width fractures rather than gaping splits.
对多种碳素钢在拉伸压缩和旋转弯曲负载下的微小裂纹扩展速率进行了研究。
A study has been done over the small crack growth rate for kinds of carbon steels under push pull and rotating bending.
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