名词短语
中文翻译：裂纹永久变形同义词
同义词：
['cracks', 'cracking', 'permanent deformation']
例句：
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1. The car's engine hasa cracked permanent deformation that needs to berepaired.
这辆车的引擎有裂纹永久变形，需要修理。
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2. The oldtree had a cracked permanentdeformation that made it difficult toclimb.
那棵老树有裂纹永久变形，使得它难以攀爬。
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3. Theengineer found the crack in the concrete walland marked it for permanent deformation.
工程师在混凝土墙上发现了裂缝，并标记了它以供永久变形。