Fatigue crack
[化] 疲劳失效; 疲劳断裂
🧩 词语组成解析
crack
[kræk]
vt. 破裂，打开;（使…）开裂;说（笑话）;开瓶;
vi. 断裂，折断;碎裂声，爆裂声;镜子破裂了;失去控制，衰退;
n. 裂缝;试图;缝隙;（可听到响声的）重击;
adj. 训练有素的;技艺高超的;优秀的;一流的;
🗣️ 情景例句
A large number of American radio stations operate in the red.
许多美国电台亏损经营。
I'm gonging to show him how to play bridge.
我正要指点他如何打桥牌。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。