Crackenn.克拉肯crackv.破裂；砸开；发出爆裂声；撞击；破解；变嘶哑；崩溃；制裁；<非正式>开玩笑n.裂缝；裂痕；爆裂声；猛击；尝试；俏皮话adj.训练有素的crack of concrete dam混凝土坝裂缝cracking-resistance抗裂cracking sloping pile断裂斜桩cracks in piled wharf高桩码头裂缝cracking furnace tube裂解炉管cracks on floor plate楼面裂缝cracked surround rock破碎围岩crack when processing加工开裂crack rubs truncation磨削裂纹crack control measure防裂措施