名词
中文翻译：直井挖掘
同义词：
['trench', 'shaft', 'well']
例句：
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1.The engineers are conducting a rectouterine excavation to test the stability of the foundation.
工程师们正在进行直井挖掘，以测试地基的稳定性。
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2.During the construction phase, we need to ensure that the rectouterine excavation is done safely.
在施工阶段，我们需要确保直井挖掘安全进行。
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3. The rectouterine excavation has revealed some unexpected geological features.
直井挖掘揭示了一些意想不到的地质特征。