cracklev.发劈啪声n.劈啪响；裂纹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cracked product裂化产物Crack Intensity劈裂强度cracking defect裂纹缺陷cracks in seams裂缝cracking member含裂纹构件cracked naphtha裂化汽油crack resistance抗龟裂性cracked residuum裂化渣油crack monitoring裂缝监测cracks detection破损检测