Crack extending
英
美
- crack v.破裂；砸开；发出爆裂声；撞击；破解；变嘶哑；崩溃；制裁；开玩笑n.裂缝；裂痕；爆裂声；猛击；尝试；俏皮话adj.训练有素的
- extending n.伸长动词extend的现在分词.
- Grain size had some effect on the rate of crack propagation.
晶粒尺寸大小对裂纹扩展速率也有影响。
- The fatigue crack growth experiments were performed according to the phenomena that crack occurred at PMMA in use.
根据外场使用中出现的裂纹现象，进行了疲劳裂纹扩展试验。
