名词
中文翻译：内部凹陷
同义词：
['internal depression', 'internal cavity']
例句：
-
1. The car's engine has a significant internal recessing that affects its performance.
这辆车的发动机有一个显著的内部凹陷，这影响了它的性能。
-
2. The engineer found an internal recessing in the wall that needed to be repaired.
工程师在墙上发现了一个需要修复的内部凹陷。
-
3. The company decided to invest in an internal recessing project to improve its efficiency.
该公司决定投资于一个内部凹陷项目以提高其效率。