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 out破裂, 炸开, 裂开

1. The energy release rate can also be established experimentally from measuring the compliance of the cracked body.
   能量释放率也可用实验方法测量裂纹体的柔度而建立起来。