名词
中文翻译：半圆形表面裂纹
同义词：
['semicircular crack', 'semicircular surfaceflaw']
例句：
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1. Thesteel plate was severely damaged by a semicircular surface crack during the accident.
在事故中，钢板严重受损是由一个半圆形表面裂纹造成的。
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2. The engineerinspected the structure forany semicircular surface cracks that might affect its integrity.
工程师检查了结构，寻找可能影响其完整性的半圆形表面裂纹。
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3. The inspection revealedseveral small semicircular surface crackson the roof, which could potentially leadto leaks.
检查发现屋顶上有几个小的半圆形表面裂纹，这可能会导致漏水。