土方工程：采用两台挖机机械挖土，采用单坑开挖和条形开挖二种方案。
Earthworks: two excavators to be used for excavation, two construction methods like single pit excavation and strip excavation to be adopted.
土方工程：采用两台挖机机械挖土，采用单坑开挖和条形开挖二种方案。
Earthworks: two excavators to be used for excavation, two construction methods like single pit excavation and strip excavation to be adopted.
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