precracking
美 英
英汉解释
例句
Fatigue Precracking for Brittle Materials in Compact Tension Specimen by Combined Loading
复合载荷下脆性材料紧凑拉伸试件疲劳裂纹的预制
Blasting test of top coal precracking in blasting coal Caving face
炮采放顶煤工作面顶煤预裂爆破试验