名词
中文翻译：不稳定层
同义词：
['unstable layer', 'unstable stratum', 'instable stratum']
例句：
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1. Theengineer used a laser to create an instable layer on the surface of the rock.
工程师使用激光在岩石表面创造了一个不稳定层。
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2. The scientist discovered that the instable layer could be responsible for the earthquake.
科学家发现不稳定层可能是地震的原因。
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3.The construction workers were working on building an instable layer to support the new bridge.
建筑工人正在建造一个不稳定层来支撑新桥。